Finding the Third Proportional to 2,191,888 and 3,439,292

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191,888 : 3,439,292 = 3,439,292 : x
2. Step 2: Convert to fraction form
   2,191,888/3,439,292 = 3,439,292/x
3. Step 3: Cross multiply
   2,191,888x = 3,439,292 × 3,439,292
4. Step 4: Simplify right side
   2,191,888x = 11,828,729,461,264
5. Step 5: Solve for x
   x = 11,828,729,461,264/2,191,888
6. Step 6: Final answer
   x = 5,396,593.92