Finding the Third Proportional to 10,260,468 and 21,679,560

Step by Step Solution

1. Step 1: Write the proportion equation
   10,260,468 : 21,679,560 = 21,679,560 : x
2. Step 2: Convert to fraction form
   10,260,468/21,679,560 = 21,679,560/x
3. Step 3: Cross multiply
   10,260,468x = 21,679,560 × 21,679,560
4. Step 4: Simplify right side
   10,260,468x = 470,003,321,793,600
5. Step 5: Solve for x
   x = 470,003,321,793,600/10,260,468
6. Step 6: Final answer
   x = 45,807,201.17