Finding the Third Proportional to 32,731.88 and 78,729.75

Step by Step Solution

1. Step 1: Write the proportion equation
   32,731.88 : 78,729.75 = 78,729.75 : x
2. Step 2: Convert to fraction form
   32,731.88/78,729.75 = 78,729.75/x
3. Step 3: Cross multiply
   32,731.88x = 78,729.75 × 78,729.75
4. Step 4: Simplify right side
   32,731.88x = 6,198,373,535.06
5. Step 5: Solve for x
   x = 6,198,373,535.06/32,731.88
6. Step 6: Final answer
   x = 189,368.12