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Finding the Third Proportional to 187,012.13 and 280,445.63

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Solution

The third proportional to 187,012.13 and 280,445.63 is: 420,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,012.13 : 280,445.63 = 280,445.63 : x
  2. Step 2: Convert to fraction form
    187,012.13/280,445.63 = 280,445.63/x
  3. Step 3: Cross multiply
    187,012.13x = 280,445.63 × 280,445.63
  4. Step 4: Simplify right side
    187,012.13x = 78,649,748,581.64
  5. Step 5: Solve for x
    x = 78,649,748,581.64/187,012.13
  6. Step 6: Final answer
    x = 420,559.62

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