Finding the Third Proportional to 7,920,550.50 and 12,589,474.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,920,550.50 : 12,589,474.50 = 12,589,474.50 : x
2. Step 2: Convert to fraction form
   7,920,550.50/12,589,474.50 = 12,589,474.50/x
3. Step 3: Cross multiply
   7,920,550.50x = 12,589,474.50 × 12,589,474.50
4. Step 4: Simplify right side
   7,920,550.50x = 158,494,868,186,150.25
5. Step 5: Solve for x
   x = 158,494,868,186,150.25/7,920,550.50
6. Step 6: Final answer
   x = 20,010,587.42