Finding the Third Proportional to 55,098.56 and 81,837.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,098.56 : 81,837.75 = 81,837.75 : x
2. Step 2: Convert to fraction form
   55,098.56/81,837.75 = 81,837.75/x
3. Step 3: Cross multiply
   55,098.56x = 81,837.75 × 81,837.75
4. Step 4: Simplify right side
   55,098.56x = 6,697,417,325.06
5. Step 5: Solve for x
   x = 6,697,417,325.06/55,098.56
6. Step 6: Final answer
   x = 121,553.39