Finding the Third Proportional to 610,818 and 1,315,290

Step by Step Solution

1. Step 1: Write the proportion equation
   610,818 : 1,315,290 = 1,315,290 : x
2. Step 2: Convert to fraction form
   610,818/1,315,290 = 1,315,290/x
3. Step 3: Cross multiply
   610,818x = 1,315,290 × 1,315,290
4. Step 4: Simplify right side
   610,818x = 1,729,987,784,100
5. Step 5: Solve for x
   x = 1,729,987,784,100/610,818
6. Step 6: Final answer
   x = 2,832,247.55