Finding the Third Proportional to 3,932,780.50 and 8,412,068

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932,780.50 : 8,412,068 = 8,412,068 : x
2. Step 2: Convert to fraction form
   3,932,780.50/8,412,068 = 8,412,068/x
3. Step 3: Cross multiply
   3,932,780.50x = 8,412,068 × 8,412,068
4. Step 4: Simplify right side
   3,932,780.50x = 70,762,888,036,624
5. Step 5: Solve for x
   x = 70,762,888,036,624/3,932,780.50
6. Step 6: Final answer
   x = 17,993,093.70