Finding the Third Proportional to 8,309,748 and 12,764,790

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,748 : 12,764,790 = 12,764,790 : x
2. Step 2: Convert to fraction form
   8,309,748/12,764,790 = 12,764,790/x
3. Step 3: Cross multiply
   8,309,748x = 12,764,790 × 12,764,790
4. Step 4: Simplify right side
   8,309,748x = 162,939,863,744,100
5. Step 5: Solve for x
   x = 162,939,863,744,100/8,309,748
6. Step 6: Final answer
   x = 19,608,279.79