Finding the Third Proportional to 1,572,789 and 3,402,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,572,789 : 3,402,642 = 3,402,642 : x
2. Step 2: Convert to fraction form
   1,572,789/3,402,642 = 3,402,642/x
3. Step 3: Cross multiply
   1,572,789x = 3,402,642 × 3,402,642
4. Step 4: Simplify right side
   1,572,789x = 11,577,972,580,164
5. Step 5: Solve for x
   x = 11,577,972,580,164/1,572,789
6. Step 6: Final answer
   x = 7,361,427.74