Finding the Third Proportional to 1,939,662 and 4,215,066

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,662 : 4,215,066 = 4,215,066 : x
2. Step 2: Convert to fraction form
   1,939,662/4,215,066 = 4,215,066/x
3. Step 3: Cross multiply
   1,939,662x = 4,215,066 × 4,215,066
4. Step 4: Simplify right side
   1,939,662x = 17,766,781,384,356
5. Step 5: Solve for x
   x = 17,766,781,384,356/1,939,662
6. Step 6: Final answer
   x = 9,159,730.60