Finding the Third Proportional to 10,020,789 and 21,956,742

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020,789 : 21,956,742 = 21,956,742 : x
2. Step 2: Convert to fraction form
   10,020,789/21,956,742 = 21,956,742/x
3. Step 3: Cross multiply
   10,020,789x = 21,956,742 × 21,956,742
4. Step 4: Simplify right side
   10,020,789x = 482,098,519,254,564
5. Step 5: Solve for x
   x = 482,098,519,254,564/10,020,789
6. Step 6: Final answer
   x = 48,109,836.39