Finding the Third Proportional to 1,490,628 and 2,107,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490,628 : 2,107,200 = 2,107,200 : x
2. Step 2: Convert to fraction form
   1,490,628/2,107,200 = 2,107,200/x
3. Step 3: Cross multiply
   1,490,628x = 2,107,200 × 2,107,200
4. Step 4: Simplify right side
   1,490,628x = 4,440,291,840,000
5. Step 5: Solve for x
   x = 4,440,291,840,000/1,490,628
6. Step 6: Final answer
   x = 2,978,806.14