Finding the Third Proportional to 107,272.50 and 231,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,272.50 : 231,412.50 = 231,412.50 : x
2. Step 2: Convert to fraction form
   107,272.50/231,412.50 = 231,412.50/x
3. Step 3: Cross multiply
   107,272.50x = 231,412.50 × 231,412.50
4. Step 4: Simplify right side
   107,272.50x = 53,551,745,156.25
5. Step 5: Solve for x
   x = 53,551,745,156.25/107,272.50
6. Step 6: Final answer
   x = 499,212.24