Finding the Third Proportional to 1,507,812 and 3,286,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507,812 : 3,286,720 = 3,286,720 : x
2. Step 2: Convert to fraction form
   1,507,812/3,286,720 = 3,286,720/x
3. Step 3: Cross multiply
   1,507,812x = 3,286,720 × 3,286,720
4. Step 4: Simplify right side
   1,507,812x = 10,802,528,358,400
5. Step 5: Solve for x
   x = 10,802,528,358,400/1,507,812
6. Step 6: Final answer
   x = 7,164,373.52