Finding the Third Proportional to 1,224,438 and 2,859,272

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,438 : 2,859,272 = 2,859,272 : x
2. Step 2: Convert to fraction form
   1,224,438/2,859,272 = 2,859,272/x
3. Step 3: Cross multiply
   1,224,438x = 2,859,272 × 2,859,272
4. Step 4: Simplify right side
   1,224,438x = 8,175,436,369,984
5. Step 5: Solve for x
   x = 8,175,436,369,984/1,224,438
6. Step 6: Final answer
   x = 6,676,888.80