Finding the Third Proportional to 53,927.63 and 81,645.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,927.63 : 81,645.75 = 81,645.75 : x
2. Step 2: Convert to fraction form
   53,927.63/81,645.75 = 81,645.75/x
3. Step 3: Cross multiply
   53,927.63x = 81,645.75 × 81,645.75
4. Step 4: Simplify right side
   53,927.63x = 6,666,028,493.06
5. Step 5: Solve for x
   x = 6,666,028,493.06/53,927.63
6. Step 6: Final answer
   x = 123,610.64