Finding the Third Proportional to 655,079.50 and 1,388,890

Step by Step Solution

1. Step 1: Write the proportion equation
   655,079.50 : 1,388,890 = 1,388,890 : x
2. Step 2: Convert to fraction form
   655,079.50/1,388,890 = 1,388,890/x
3. Step 3: Cross multiply
   655,079.50x = 1,388,890 × 1,388,890
4. Step 4: Simplify right side
   655,079.50x = 1,929,015,432,100
5. Step 5: Solve for x
   x = 1,929,015,432,100/655,079.50
6. Step 6: Final answer
   x = 2,944,704.32