Finding the Third Proportional to 70,779 and 99,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,779 : 99,160.50 = 99,160.50 : x
2. Step 2: Convert to fraction form
   70,779/99,160.50 = 99,160.50/x
3. Step 3: Cross multiply
   70,779x = 99,160.50 × 99,160.50
4. Step 4: Simplify right side
   70,779x = 9,832,804,760.25
5. Step 5: Solve for x
   x = 9,832,804,760.25/70,779
6. Step 6: Final answer
   x = 138,922.63