Finding the Third Proportional to 53,925.75 and 81,642.94

Step by Step Solution

1. Step 1: Write the proportion equation
   53,925.75 : 81,642.94 = 81,642.94 : x
2. Step 2: Convert to fraction form
   53,925.75/81,642.94 = 81,642.94/x
3. Step 3: Cross multiply
   53,925.75x = 81,642.94 × 81,642.94
4. Step 4: Simplify right side
   53,925.75x = 6,665,569,243.63
5. Step 5: Solve for x
   x = 6,665,569,243.63/53,925.75
6. Step 6: Final answer
   x = 123,606.43