Finding the Third Proportional to 1,490,402 and 3,240,112

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490,402 : 3,240,112 = 3,240,112 : x
2. Step 2: Convert to fraction form
   1,490,402/3,240,112 = 3,240,112/x
3. Step 3: Cross multiply
   1,490,402x = 3,240,112 × 3,240,112
4. Step 4: Simplify right side
   1,490,402x = 10,498,325,772,544
5. Step 5: Solve for x
   x = 10,498,325,772,544/1,490,402
6. Step 6: Final answer
   x = 7,043,955.77