Finding the Third Proportional to 639,751 and 1,358,222

Step by Step Solution

1. Step 1: Write the proportion equation
   639,751 : 1,358,222 = 1,358,222 : x
2. Step 2: Convert to fraction form
   639,751/1,358,222 = 1,358,222/x
3. Step 3: Cross multiply
   639,751x = 1,358,222 × 1,358,222
4. Step 4: Simplify right side
   639,751x = 1,844,767,001,284
5. Step 5: Solve for x
   x = 1,844,767,001,284/639,751
6. Step 6: Final answer
   x = 2,883,570.33