Finding the Third Proportional to 48,690.75 and 72,842.25

Step by Step Solution

1. Step 1: Write the proportion equation
   48,690.75 : 72,842.25 = 72,842.25 : x
2. Step 2: Convert to fraction form
   48,690.75/72,842.25 = 72,842.25/x
3. Step 3: Cross multiply
   48,690.75x = 72,842.25 × 72,842.25
4. Step 4: Simplify right side
   48,690.75x = 5,305,993,385.06
5. Step 5: Solve for x
   x = 5,305,993,385.06/48,690.75
6. Step 6: Final answer
   x = 108,973.33