Finding the Third Proportional to 978,656 and 1,512,516

Step by Step Solution

1. Step 1: Write the proportion equation
   978,656 : 1,512,516 = 1,512,516 : x
2. Step 2: Convert to fraction form
   978,656/1,512,516 = 1,512,516/x
3. Step 3: Cross multiply
   978,656x = 1,512,516 × 1,512,516
4. Step 4: Simplify right side
   978,656x = 2,287,704,650,256
5. Step 5: Solve for x
   x = 2,287,704,650,256/978,656
6. Step 6: Final answer
   x = 2,337,598.35