Finding the Third Proportional to 52,618.50 and 80,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,618.50 : 80,494.50 = 80,494.50 : x
2. Step 2: Convert to fraction form
   52,618.50/80,494.50 = 80,494.50/x
3. Step 3: Cross multiply
   52,618.50x = 80,494.50 × 80,494.50
4. Step 4: Simplify right side
   52,618.50x = 6,479,364,530.25
5. Step 5: Solve for x
   x = 6,479,364,530.25/52,618.50
6. Step 6: Final answer
   x = 123,138.53