Finding the Third Proportional to 53,085.38 and 80,308.13

Step by Step Solution

1. Step 1: Write the proportion equation
   53,085.38 : 80,308.13 = 80,308.13 : x
2. Step 2: Convert to fraction form
   53,085.38/80,308.13 = 80,308.13/x
3. Step 3: Cross multiply
   53,085.38x = 80,308.13 × 80,308.13
4. Step 4: Simplify right side
   53,085.38x = 6,449,394,941.02
5. Step 5: Solve for x
   x = 6,449,394,941.02/53,085.38
6. Step 6: Final answer
   x = 121,490.99