Finding the Third Proportional to 64,497.75 and 99,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,497.75 : 99,622.50 = 99,622.50 : x
2. Step 2: Convert to fraction form
   64,497.75/99,622.50 = 99,622.50/x
3. Step 3: Cross multiply
   64,497.75x = 99,622.50 × 99,622.50
4. Step 4: Simplify right side
   64,497.75x = 9,924,642,506.25
5. Step 5: Solve for x
   x = 9,924,642,506.25/64,497.75
6. Step 6: Final answer
   x = 153,875.79