Finding the Third Proportional to 8,391,566 and 12,958,046

Step by Step Solution

1. Step 1: Write the proportion equation
   8,391,566 : 12,958,046 = 12,958,046 : x
2. Step 2: Convert to fraction form
   8,391,566/12,958,046 = 12,958,046/x
3. Step 3: Cross multiply
   8,391,566x = 12,958,046 × 12,958,046
4. Step 4: Simplify right side
   8,391,566x = 167,910,956,138,116
5. Step 5: Solve for x
   x = 167,910,956,138,116/8,391,566
6. Step 6: Final answer
   x = 20,009,490.02