Finding the Third Proportional to 1,058,194 and 2,221,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058,194 : 2,221,220 = 2,221,220 : x
2. Step 2: Convert to fraction form
   1,058,194/2,221,220 = 2,221,220/x
3. Step 3: Cross multiply
   1,058,194x = 2,221,220 × 2,221,220
4. Step 4: Simplify right side
   1,058,194x = 4,933,818,288,400
5. Step 5: Solve for x
   x = 4,933,818,288,400/1,058,194
6. Step 6: Final answer
   x = 4,662,489.38