Finding the Third Proportional to 42,915.50 and 65,650

Step by Step Solution

1. Step 1: Write the proportion equation
   42,915.50 : 65,650 = 65,650 : x
2. Step 2: Convert to fraction form
   42,915.50/65,650 = 65,650/x
3. Step 3: Cross multiply
   42,915.50x = 65,650 × 65,650
4. Step 4: Simplify right side
   42,915.50x = 4,309,922,500
5. Step 5: Solve for x
   x = 4,309,922,500/42,915.50
6. Step 6: Final answer
   x = 100,428.11