Finding the Third Proportional to 8,263,566 and 12,826,428

Step by Step Solution

1. Step 1: Write the proportion equation
   8,263,566 : 12,826,428 = 12,826,428 : x
2. Step 2: Convert to fraction form
   8,263,566/12,826,428 = 12,826,428/x
3. Step 3: Cross multiply
   8,263,566x = 12,826,428 × 12,826,428
4. Step 4: Simplify right side
   8,263,566x = 164,517,255,239,184
5. Step 5: Solve for x
   x = 164,517,255,239,184/8,263,566
6. Step 6: Final answer
   x = 19,908,748.26