Finding the Third Proportional to 4,560,810 and 9,910,156

Step by Step Solution

1. Step 1: Write the proportion equation
   4,560,810 : 9,910,156 = 9,910,156 : x
2. Step 2: Convert to fraction form
   4,560,810/9,910,156 = 9,910,156/x
3. Step 3: Cross multiply
   4,560,810x = 9,910,156 × 9,910,156
4. Step 4: Simplify right side
   4,560,810x = 98,211,191,944,336
5. Step 5: Solve for x
   x = 98,211,191,944,336/4,560,810
6. Step 6: Final answer
   x = 21,533,717.02