Finding the Third Proportional to 53,115 and 80,083.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,115 : 80,083.50 = 80,083.50 : x
2. Step 2: Convert to fraction form
   53,115/80,083.50 = 80,083.50/x
3. Step 3: Cross multiply
   53,115x = 80,083.50 × 80,083.50
4. Step 4: Simplify right side
   53,115x = 6,413,366,972.25
5. Step 5: Solve for x
   x = 6,413,366,972.25/53,115
6. Step 6: Final answer
   x = 120,744.93