Finding the Third Proportional to 7,142,864 and 10,778,703

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142,864 : 10,778,703 = 10,778,703 : x
2. Step 2: Convert to fraction form
   7,142,864/10,778,703 = 10,778,703/x
3. Step 3: Cross multiply
   7,142,864x = 10,778,703 × 10,778,703
4. Step 4: Simplify right side
   7,142,864x = 116,180,438,362,209
5. Step 5: Solve for x
   x = 116,180,438,362,209/7,142,864
6. Step 6: Final answer
   x = 16,265,245.76