Finding the Third Proportional to 53,487 and 76,403.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,487 : 76,403.25 = 76,403.25 : x
2. Step 2: Convert to fraction form
   53,487/76,403.25 = 76,403.25/x
3. Step 3: Cross multiply
   53,487x = 76,403.25 × 76,403.25
4. Step 4: Simplify right side
   53,487x = 5,837,456,610.56
5. Step 5: Solve for x
   x = 5,837,456,610.56/53,487
6. Step 6: Final answer
   x = 109,137.86