Finding the Third Proportional to 281,739 and 626,467.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,739 : 626,467.50 = 626,467.50 : x
2. Step 2: Convert to fraction form
   281,739/626,467.50 = 626,467.50/x
3. Step 3: Cross multiply
   281,739x = 626,467.50 × 626,467.50
4. Step 4: Simplify right side
   281,739x = 392,461,528,556.25
5. Step 5: Solve for x
   x = 392,461,528,556.25/281,739
6. Step 6: Final answer
   x = 1,392,996.81