Finding the Third Proportional to 10,027,138 and 20,585,156

Step by Step Solution

1. Step 1: Write the proportion equation
   10,027,138 : 20,585,156 = 20,585,156 : x
2. Step 2: Convert to fraction form
   10,027,138/20,585,156 = 20,585,156/x
3. Step 3: Cross multiply
   10,027,138x = 20,585,156 × 20,585,156
4. Step 4: Simplify right side
   10,027,138x = 423,748,647,544,336
5. Step 5: Solve for x
   x = 423,748,647,544,336/10,027,138
6. Step 6: Final answer
   x = 42,260,179.08