Finding the Third Proportional to 53,406.37 and 80,282.55

Step by Step Solution

1. Step 1: Write the proportion equation
   53,406.37 : 80,282.55 = 80,282.55 : x
2. Step 2: Convert to fraction form
   53,406.37/80,282.55 = 80,282.55/x
3. Step 3: Cross multiply
   53,406.37x = 80,282.55 × 80,282.55
4. Step 4: Simplify right side
   53,406.37x = 6,445,287,646.34
5. Step 5: Solve for x
   x = 6,445,287,646.34/53,406.37
6. Step 6: Final answer
   x = 120,683.88