Finding the Third Proportional to 65,715 and 148,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,715 : 148,978.50 = 148,978.50 : x
2. Step 2: Convert to fraction form
   65,715/148,978.50 = 148,978.50/x
3. Step 3: Cross multiply
   65,715x = 148,978.50 × 148,978.50
4. Step 4: Simplify right side
   65,715x = 22,194,593,462.25
5. Step 5: Solve for x
   x = 22,194,593,462.25/65,715
6. Step 6: Final answer
   x = 337,740.14