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Finding the Third Proportional to 556.50 and 630

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Solution

The third proportional to 556.50 and 630 is: 713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.50 : 630 = 630 : x
  2. Step 2: Convert to fraction form
    556.50/630 = 630/x
  3. Step 3: Cross multiply
    556.50x = 630 × 630
  4. Step 4: Simplify right side
    556.50x = 396,900
  5. Step 5: Solve for x
    x = 396,900/556.50
  6. Step 6: Final answer
    x = 713.21

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