Finding the Third Proportional to 978,650 and 1,512,507

Step by Step Solution

1. Step 1: Write the proportion equation
   978,650 : 1,512,507 = 1,512,507 : x
2. Step 2: Convert to fraction form
   978,650/1,512,507 = 1,512,507/x
3. Step 3: Cross multiply
   978,650x = 1,512,507 × 1,512,507
4. Step 4: Simplify right side
   978,650x = 2,287,677,425,049
5. Step 5: Solve for x
   x = 2,287,677,425,049/978,650
6. Step 6: Final answer
   x = 2,337,584.86