Finding the Third Proportional to 8,360,735.63 and 12,218,499

Step by Step Solution

1. Step 1: Write the proportion equation
   8,360,735.63 : 12,218,499 = 12,218,499 : x
2. Step 2: Convert to fraction form
   8,360,735.63/12,218,499 = 12,218,499/x
3. Step 3: Cross multiply
   8,360,735.63x = 12,218,499 × 12,218,499
4. Step 4: Simplify right side
   8,360,735.63x = 149,291,717,813,001
5. Step 5: Solve for x
   x = 149,291,717,813,001/8,360,735.63
6. Step 6: Final answer
   x = 17,856,289.75