Finding the Third Proportional to 42,386 and 62,280

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386 : 62,280 = 62,280 : x
2. Step 2: Convert to fraction form
   42,386/62,280 = 62,280/x
3. Step 3: Cross multiply
   42,386x = 62,280 × 62,280
4. Step 4: Simplify right side
   42,386x = 3,878,798,400
5. Step 5: Solve for x
   x = 3,878,798,400/42,386
6. Step 6: Final answer
   x = 91,511.31