Finding the Third Proportional to 231,499.50 and 307,251

Step by Step Solution

1. Step 1: Write the proportion equation
   231,499.50 : 307,251 = 307,251 : x
2. Step 2: Convert to fraction form
   231,499.50/307,251 = 307,251/x
3. Step 3: Cross multiply
   231,499.50x = 307,251 × 307,251
4. Step 4: Simplify right side
   231,499.50x = 94,403,177,001
5. Step 5: Solve for x
   x = 94,403,177,001/231,499.50
6. Step 6: Final answer
   x = 407,789.98