Finding the Third Proportional to 42,140 and 63,380

Step by Step Solution

1. Step 1: Write the proportion equation
   42,140 : 63,380 = 63,380 : x
2. Step 2: Convert to fraction form
   42,140/63,380 = 63,380/x
3. Step 3: Cross multiply
   42,140x = 63,380 × 63,380
4. Step 4: Simplify right side
   42,140x = 4,017,024,400
5. Step 5: Solve for x
   x = 4,017,024,400/42,140
6. Step 6: Final answer
   x = 95,325.69