Finding the Third Proportional to 1,939,653 and 4,215,051

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,653 : 4,215,051 = 4,215,051 : x
2. Step 2: Convert to fraction form
   1,939,653/4,215,051 = 4,215,051/x
3. Step 3: Cross multiply
   1,939,653x = 4,215,051 × 4,215,051
4. Step 4: Simplify right side
   1,939,653x = 17,766,654,932,601
5. Step 5: Solve for x
   x = 17,766,654,932,601/1,939,653
6. Step 6: Final answer
   x = 9,159,707.91