Finding the Third Proportional to 2,100,156 and 4,580,427

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,156 : 4,580,427 = 4,580,427 : x
2. Step 2: Convert to fraction form
   2,100,156/4,580,427 = 4,580,427/x
3. Step 3: Cross multiply
   2,100,156x = 4,580,427 × 4,580,427
4. Step 4: Simplify right side
   2,100,156x = 20,980,311,502,329
5. Step 5: Solve for x
   x = 20,980,311,502,329/2,100,156
6. Step 6: Final answer
   x = 9,989,882.42