Finding the Third Proportional to 8,267,707 and 12,409,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,267,707 : 12,409,802.50 = 12,409,802.50 : x
2. Step 2: Convert to fraction form
   8,267,707/12,409,802.50 = 12,409,802.50/x
3. Step 3: Cross multiply
   8,267,707x = 12,409,802.50 × 12,409,802.50
4. Step 4: Simplify right side
   8,267,707x = 154,003,198,089,006.25
5. Step 5: Solve for x
   x = 154,003,198,089,006.25/8,267,707
6. Step 6: Final answer
   x = 18,627,074.97