Finding the Third Proportional to 77,418 and 101,242

Step by Step Solution

1. Step 1: Write the proportion equation
   77,418 : 101,242 = 101,242 : x
2. Step 2: Convert to fraction form
   77,418/101,242 = 101,242/x
3. Step 3: Cross multiply
   77,418x = 101,242 × 101,242
4. Step 4: Simplify right side
   77,418x = 10,249,942,564
5. Step 5: Solve for x
   x = 10,249,942,564/77,418
6. Step 6: Final answer
   x = 132,397.41