Finding the Third Proportional to 64,059.75 and 99,529.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,059.75 : 99,529.50 = 99,529.50 : x
2. Step 2: Convert to fraction form
   64,059.75/99,529.50 = 99,529.50/x
3. Step 3: Cross multiply
   64,059.75x = 99,529.50 × 99,529.50
4. Step 4: Simplify right side
   64,059.75x = 9,906,121,370.25
5. Step 5: Solve for x
   x = 9,906,121,370.25/64,059.75
6. Step 6: Final answer
   x = 154,638.78