Finding the Third Proportional to 5,207,810 and 7,885,155

Step by Step Solution

1. Step 1: Write the proportion equation
   5,207,810 : 7,885,155 = 7,885,155 : x
2. Step 2: Convert to fraction form
   5,207,810/7,885,155 = 7,885,155/x
3. Step 3: Cross multiply
   5,207,810x = 7,885,155 × 7,885,155
4. Step 4: Simplify right side
   5,207,810x = 62,175,669,374,025
5. Step 5: Solve for x
   x = 62,175,669,374,025/5,207,810
6. Step 6: Final answer
   x = 11,938,928.14