Finding the Third Proportional to 688,300.50 and 1,395,822

Step by Step Solution

1. Step 1: Write the proportion equation
   688,300.50 : 1,395,822 = 1,395,822 : x
2. Step 2: Convert to fraction form
   688,300.50/1,395,822 = 1,395,822/x
3. Step 3: Cross multiply
   688,300.50x = 1,395,822 × 1,395,822
4. Step 4: Simplify right side
   688,300.50x = 1,948,319,055,684
5. Step 5: Solve for x
   x = 1,948,319,055,684/688,300.50
6. Step 6: Final answer
   x = 2,830,622.75