Finding the Third Proportional to 32,129 and 69,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,129 : 69,621.50 = 69,621.50 : x
2. Step 2: Convert to fraction form
   32,129/69,621.50 = 69,621.50/x
3. Step 3: Cross multiply
   32,129x = 69,621.50 × 69,621.50
4. Step 4: Simplify right side
   32,129x = 4,847,153,262.25
5. Step 5: Solve for x
   x = 4,847,153,262.25/32,129
6. Step 6: Final answer
   x = 150,865.36