Finding the Third Proportional to 187,061.91 and 290,243.25

Step by Step Solution

1. Step 1: Write the proportion equation
   187,061.91 : 290,243.25 = 290,243.25 : x
2. Step 2: Convert to fraction form
   187,061.91/290,243.25 = 290,243.25/x
3. Step 3: Cross multiply
   187,061.91x = 290,243.25 × 290,243.25
4. Step 4: Simplify right side
   187,061.91x = 84,241,144,170.56
5. Step 5: Solve for x
   x = 84,241,144,170.56/187,061.91
6. Step 6: Final answer
   x = 450,338.32