Finding the Third Proportional to 55,426.78 and 83,054.74

Step by Step Solution

1. Step 1: Write the proportion equation
   55,426.78 : 83,054.74 = 83,054.74 : x
2. Step 2: Convert to fraction form
   55,426.78/83,054.74 = 83,054.74/x
3. Step 3: Cross multiply
   55,426.78x = 83,054.74 × 83,054.74
4. Step 4: Simplify right side
   55,426.78x = 6,898,090,199.83
5. Step 5: Solve for x
   x = 6,898,090,199.83/55,426.78
6. Step 6: Final answer
   x = 124,454.10