Finding the Third Proportional to 7,837,439 and 12,105,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,837,439 : 12,105,616.50 = 12,105,616.50 : x
2. Step 2: Convert to fraction form
   7,837,439/12,105,616.50 = 12,105,616.50/x
3. Step 3: Cross multiply
   7,837,439x = 12,105,616.50 × 12,105,616.50
4. Step 4: Simplify right side
   7,837,439x = 146,545,950,845,072.25
5. Step 5: Solve for x
   x = 146,545,950,845,072.25/7,837,439
6. Step 6: Final answer
   x = 18,698,193.48