Finding the Third Proportional to 149,254.50 and 231,111

Step by Step Solution

1. Step 1: Write the proportion equation
   149,254.50 : 231,111 = 231,111 : x
2. Step 2: Convert to fraction form
   149,254.50/231,111 = 231,111/x
3. Step 3: Cross multiply
   149,254.50x = 231,111 × 231,111
4. Step 4: Simplify right side
   149,254.50x = 53,412,294,321
5. Step 5: Solve for x
   x = 53,412,294,321/149,254.50
6. Step 6: Final answer
   x = 357,860.53