Finding the Third Proportional to 55,409.06 and 81,146.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,409.06 : 81,146.81 = 81,146.81 : x
2. Step 2: Convert to fraction form
   55,409.06/81,146.81 = 81,146.81/x
3. Step 3: Cross multiply
   55,409.06x = 81,146.81 × 81,146.81
4. Step 4: Simplify right side
   55,409.06x = 6,584,805,178.91
5. Step 5: Solve for x
   x = 6,584,805,178.91/55,409.06
6. Step 6: Final answer
   x = 118,839.86