Finding the Third Proportional to 42,713 and 65,122

Step by Step Solution

1. Step 1: Write the proportion equation
   42,713 : 65,122 = 65,122 : x
2. Step 2: Convert to fraction form
   42,713/65,122 = 65,122/x
3. Step 3: Cross multiply
   42,713x = 65,122 × 65,122
4. Step 4: Simplify right side
   42,713x = 4,240,874,884
5. Step 5: Solve for x
   x = 4,240,874,884/42,713
6. Step 6: Final answer
   x = 99,287.68