Finding the Third Proportional to 52,285.50 and 78,919.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,285.50 : 78,919.31 = 78,919.31 : x
2. Step 2: Convert to fraction form
   52,285.50/78,919.31 = 78,919.31/x
3. Step 3: Cross multiply
   52,285.50x = 78,919.31 × 78,919.31
4. Step 4: Simplify right side
   52,285.50x = 6,228,257,885.47
5. Step 5: Solve for x
   x = 6,228,257,885.47/52,285.50
6. Step 6: Final answer
   x = 119,120.17