Finding the Third Proportional to 187,499.25 and 290,402.25

Step by Step Solution

1. Step 1: Write the proportion equation
   187,499.25 : 290,402.25 = 290,402.25 : x
2. Step 2: Convert to fraction form
   187,499.25/290,402.25 = 290,402.25/x
3. Step 3: Cross multiply
   187,499.25x = 290,402.25 × 290,402.25
4. Step 4: Simplify right side
   187,499.25x = 84,333,466,805.06
5. Step 5: Solve for x
   x = 84,333,466,805.06/187,499.25
6. Step 6: Final answer
   x = 449,780.29