Finding the Third Proportional to 7,980,315 and 12,382,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980,315 : 12,382,162.50 = 12,382,162.50 : x
2. Step 2: Convert to fraction form
   7,980,315/12,382,162.50 = 12,382,162.50/x
3. Step 3: Cross multiply
   7,980,315x = 12,382,162.50 × 12,382,162.50
4. Step 4: Simplify right side
   7,980,315x = 153,317,948,176,406.25
5. Step 5: Solve for x
   x = 153,317,948,176,406.25/7,980,315
6. Step 6: Final answer
   x = 19,212,017.09