Finding the Third Proportional to 64,515 and 101,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,515 : 101,380.50 = 101,380.50 : x
2. Step 2: Convert to fraction form
   64,515/101,380.50 = 101,380.50/x
3. Step 3: Cross multiply
   64,515x = 101,380.50 × 101,380.50
4. Step 4: Simplify right side
   64,515x = 10,278,005,780.25
5. Step 5: Solve for x
   x = 10,278,005,780.25/64,515
6. Step 6: Final answer
   x = 159,311.88