Finding the Third Proportional to 71,807.25 and 153,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,807.25 : 153,388.50 = 153,388.50 : x
2. Step 2: Convert to fraction form
   71,807.25/153,388.50 = 153,388.50/x
3. Step 3: Cross multiply
   71,807.25x = 153,388.50 × 153,388.50
4. Step 4: Simplify right side
   71,807.25x = 23,528,031,932.25
5. Step 5: Solve for x
   x = 23,528,031,932.25/71,807.25
6. Step 6: Final answer
   x = 327,655.38