Finding the Third Proportional to 149,283 and 231,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,283 : 231,136.50 = 231,136.50 : x
2. Step 2: Convert to fraction form
   149,283/231,136.50 = 231,136.50/x
3. Step 3: Cross multiply
   149,283x = 231,136.50 × 231,136.50
4. Step 4: Simplify right side
   149,283x = 53,424,081,632.25
5. Step 5: Solve for x
   x = 53,424,081,632.25/149,283
6. Step 6: Final answer
   x = 357,871.17