Finding the Third Proportional to 56,685.94 and 81,943.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,685.94 : 81,943.69 = 81,943.69 : x
2. Step 2: Convert to fraction form
   56,685.94/81,943.69 = 81,943.69/x
3. Step 3: Cross multiply
   56,685.94x = 81,943.69 × 81,943.69
4. Step 4: Simplify right side
   56,685.94x = 6,714,767,921.10
5. Step 5: Solve for x
   x = 6,714,767,921.10/56,685.94
6. Step 6: Final answer
   x = 118,455.62