Finding the Third Proportional to 1,398,281 and 2,210,650

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,281 : 2,210,650 = 2,210,650 : x
2. Step 2: Convert to fraction form
   1,398,281/2,210,650 = 2,210,650/x
3. Step 3: Cross multiply
   1,398,281x = 2,210,650 × 2,210,650
4. Step 4: Simplify right side
   1,398,281x = 4,886,973,422,500
5. Step 5: Solve for x
   x = 4,886,973,422,500/1,398,281
6. Step 6: Final answer
   x = 3,494,986.65