Finding the Third Proportional to 8,536,958 and 13,120,366

Step by Step Solution

1. Step 1: Write the proportion equation
   8,536,958 : 13,120,366 = 13,120,366 : x
2. Step 2: Convert to fraction form
   8,536,958/13,120,366 = 13,120,366/x
3. Step 3: Cross multiply
   8,536,958x = 13,120,366 × 13,120,366
4. Step 4: Simplify right side
   8,536,958x = 172,144,003,973,956
5. Step 5: Solve for x
   x = 172,144,003,973,956/8,536,958
6. Step 6: Final answer
   x = 20,164,560.25