Finding the Third Proportional to 77,866.31 and 111,348.42

Step by Step Solution

1. Step 1: Write the proportion equation
   77,866.31 : 111,348.42 = 111,348.42 : x
2. Step 2: Convert to fraction form
   77,866.31/111,348.42 = 111,348.42/x
3. Step 3: Cross multiply
   77,866.31x = 111,348.42 × 111,348.42
4. Step 4: Simplify right side
   77,866.31x = 12,398,471,054.05
5. Step 5: Solve for x
   x = 12,398,471,054.05/77,866.31
6. Step 6: Final answer
   x = 159,227.66