Finding the Third Proportional to 32,172.75 and 68,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,172.75 : 68,980.50 = 68,980.50 : x
2. Step 2: Convert to fraction form
   32,172.75/68,980.50 = 68,980.50/x
3. Step 3: Cross multiply
   32,172.75x = 68,980.50 × 68,980.50
4. Step 4: Simplify right side
   32,172.75x = 4,758,309,380.25
5. Step 5: Solve for x
   x = 4,758,309,380.25/32,172.75
6. Step 6: Final answer
   x = 147,898.75