Finding the Third Proportional to 64,492.50 and 144,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,492.50 : 144,847.50 = 144,847.50 : x
2. Step 2: Convert to fraction form
   64,492.50/144,847.50 = 144,847.50/x
3. Step 3: Cross multiply
   64,492.50x = 144,847.50 × 144,847.50
4. Step 4: Simplify right side
   64,492.50x = 20,980,798,256.25
5. Step 5: Solve for x
   x = 20,980,798,256.25/64,492.50
6. Step 6: Final answer
   x = 325,321.52