Finding the Third Proportional to 1,279,743 and 1,933,221

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,743 : 1,933,221 = 1,933,221 : x
2. Step 2: Convert to fraction form
   1,279,743/1,933,221 = 1,933,221/x
3. Step 3: Cross multiply
   1,279,743x = 1,933,221 × 1,933,221
4. Step 4: Simplify right side
   1,279,743x = 3,737,343,434,841
5. Step 5: Solve for x
   x = 3,737,343,434,841/1,279,743
6. Step 6: Final answer
   x = 2,920,385.92