Finding the Third Proportional to 42,912 and 62,148

Step by Step Solution

1. Step 1: Write the proportion equation
   42,912 : 62,148 = 62,148 : x
2. Step 2: Convert to fraction form
   42,912/62,148 = 62,148/x
3. Step 3: Cross multiply
   42,912x = 62,148 × 62,148
4. Step 4: Simplify right side
   42,912x = 3,862,373,904
5. Step 5: Solve for x
   x = 3,862,373,904/42,912
6. Step 6: Final answer
   x = 90,006.85