Finding the Third Proportional to 42,616 and 63,680

Step by Step Solution

1. Step 1: Write the proportion equation
   42,616 : 63,680 = 63,680 : x
2. Step 2: Convert to fraction form
   42,616/63,680 = 63,680/x
3. Step 3: Cross multiply
   42,616x = 63,680 × 63,680
4. Step 4: Simplify right side
   42,616x = 4,055,142,400
5. Step 5: Solve for x
   x = 4,055,142,400/42,616
6. Step 6: Final answer
   x = 95,155.40