Finding the Third Proportional to 8,263,545 and 12,826,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,263,545 : 12,826,399.50 = 12,826,399.50 : x
2. Step 2: Convert to fraction form
   8,263,545/12,826,399.50 = 12,826,399.50/x
3. Step 3: Cross multiply
   8,263,545x = 12,826,399.50 × 12,826,399.50
4. Step 4: Simplify right side
   8,263,545x = 164,516,524,133,600.25
5. Step 5: Solve for x
   x = 164,516,524,133,600.25/8,263,545
6. Step 6: Final answer
   x = 19,908,710.38