Finding the Third Proportional to 1,224,420 and 2,859,222

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,420 : 2,859,222 = 2,859,222 : x
2. Step 2: Convert to fraction form
   1,224,420/2,859,222 = 2,859,222/x
3. Step 3: Cross multiply
   1,224,420x = 2,859,222 × 2,859,222
4. Step 4: Simplify right side
   1,224,420x = 8,175,150,445,284
5. Step 5: Solve for x
   x = 8,175,150,445,284/1,224,420
6. Step 6: Final answer
   x = 6,676,753.44