Finding the Third Proportional to 59,824 and 87,139

Step by Step Solution

1. Step 1: Write the proportion equation
   59,824 : 87,139 = 87,139 : x
2. Step 2: Convert to fraction form
   59,824/87,139 = 87,139/x
3. Step 3: Cross multiply
   59,824x = 87,139 × 87,139
4. Step 4: Simplify right side
   59,824x = 7,593,205,321
5. Step 5: Solve for x
   x = 7,593,205,321/59,824
6. Step 6: Final answer
   x = 126,925.74