Finding the Third Proportional to 48,434 and 65,418

Step by Step Solution

1. Step 1: Write the proportion equation
   48,434 : 65,418 = 65,418 : x
2. Step 2: Convert to fraction form
   48,434/65,418 = 65,418/x
3. Step 3: Cross multiply
   48,434x = 65,418 × 65,418
4. Step 4: Simplify right side
   48,434x = 4,279,514,724
5. Step 5: Solve for x
   x = 4,279,514,724/48,434
6. Step 6: Final answer
   x = 88,357.66