Finding the Third Proportional to 1,939,644 and 4,215,033

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,644 : 4,215,033 = 4,215,033 : x
2. Step 2: Convert to fraction form
   1,939,644/4,215,033 = 4,215,033/x
3. Step 3: Cross multiply
   1,939,644x = 4,215,033 × 4,215,033
4. Step 4: Simplify right side
   1,939,644x = 17,766,503,191,089
5. Step 5: Solve for x
   x = 17,766,503,191,089/1,939,644
6. Step 6: Final answer
   x = 9,159,672.18