Finding the Third Proportional to 8,360,738 and 12,218,501

Step by Step Solution

1. Step 1: Write the proportion equation
   8,360,738 : 12,218,501 = 12,218,501 : x
2. Step 2: Convert to fraction form
   8,360,738/12,218,501 = 12,218,501/x
3. Step 3: Cross multiply
   8,360,738x = 12,218,501 × 12,218,501
4. Step 4: Simplify right side
   8,360,738x = 149,291,766,687,001
5. Step 5: Solve for x
   x = 149,291,766,687,001/8,360,738
6. Step 6: Final answer
   x = 17,856,290.52