Finding the Third Proportional to 978,654 and 1,512,513

Step by Step Solution

1. Step 1: Write the proportion equation
   978,654 : 1,512,513 = 1,512,513 : x
2. Step 2: Convert to fraction form
   978,654/1,512,513 = 1,512,513/x
3. Step 3: Cross multiply
   978,654x = 1,512,513 × 1,512,513
4. Step 4: Simplify right side
   978,654x = 2,287,695,575,169
5. Step 5: Solve for x
   x = 2,287,695,575,169/978,654
6. Step 6: Final answer
   x = 2,337,593.85