Finding the Third Proportional to 78,686.25 and 118,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,686.25 : 118,687.50 = 118,687.50 : x
2. Step 2: Convert to fraction form
   78,686.25/118,687.50 = 118,687.50/x
3. Step 3: Cross multiply
   78,686.25x = 118,687.50 × 118,687.50
4. Step 4: Simplify right side
   78,686.25x = 14,086,722,656.25
5. Step 5: Solve for x
   x = 14,086,722,656.25/78,686.25
6. Step 6: Final answer
   x = 179,023.94