Finding the Third Proportional to 1,939,655 and 4,215,055

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,655 : 4,215,055 = 4,215,055 : x
2. Step 2: Convert to fraction form
   1,939,655/4,215,055 = 4,215,055/x
3. Step 3: Cross multiply
   1,939,655x = 4,215,055 × 4,215,055
4. Step 4: Simplify right side
   1,939,655x = 17,766,688,653,025
5. Step 5: Solve for x
   x = 17,766,688,653,025/1,939,655
6. Step 6: Final answer
   x = 9,159,715.85