Finding the Third Proportional to 56,787.94 and 87,920.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,787.94 : 87,920.06 = 87,920.06 : x
2. Step 2: Convert to fraction form
   56,787.94/87,920.06 = 87,920.06/x
3. Step 3: Cross multiply
   56,787.94x = 87,920.06 × 87,920.06
4. Step 4: Simplify right side
   56,787.94x = 7,729,937,390.00
5. Step 5: Solve for x
   x = 7,729,937,390.00/56,787.94
6. Step 6: Final answer
   x = 136,119.35