Finding the Third Proportional to 42,318 and 62,145

Step by Step Solution

1. Step 1: Write the proportion equation
   42,318 : 62,145 = 62,145 : x
2. Step 2: Convert to fraction form
   42,318/62,145 = 62,145/x
3. Step 3: Cross multiply
   42,318x = 62,145 × 62,145
4. Step 4: Simplify right side
   42,318x = 3,862,001,025
5. Step 5: Solve for x
   x = 3,862,001,025/42,318
6. Step 6: Final answer
   x = 91,261.43