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Finding the Third Proportional to 12,618 and 28,618

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Solution

The third proportional to 12,618 and 28,618 is: 64,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618 : 28,618 = 28,618 : x
  2. Step 2: Convert to fraction form
    12,618/28,618 = 28,618/x
  3. Step 3: Cross multiply
    12,618x = 28,618 × 28,618
  4. Step 4: Simplify right side
    12,618x = 818,989,924
  5. Step 5: Solve for x
    x = 818,989,924/12,618
  6. Step 6: Final answer
    x = 64,906.48

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.