Finding the Third Proportional to 47,355.75 and 78,915.75

Step by Step Solution

1. Step 1: Write the proportion equation
   47,355.75 : 78,915.75 = 78,915.75 : x
2. Step 2: Convert to fraction form
   47,355.75/78,915.75 = 78,915.75/x
3. Step 3: Cross multiply
   47,355.75x = 78,915.75 × 78,915.75
4. Step 4: Simplify right side
   47,355.75x = 6,227,695,598.06
5. Step 5: Solve for x
   x = 6,227,695,598.06/47,355.75
6. Step 6: Final answer
   x = 131,508.75