Finding the Third Proportional to 2,128,472 and 3,189,594

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,472 : 3,189,594 = 3,189,594 : x
2. Step 2: Convert to fraction form
   2,128,472/3,189,594 = 3,189,594/x
3. Step 3: Cross multiply
   2,128,472x = 3,189,594 × 3,189,594
4. Step 4: Simplify right side
   2,128,472x = 10,173,509,884,836
5. Step 5: Solve for x
   x = 10,173,509,884,836/2,128,472
6. Step 6: Final answer
   x = 4,779,724.56