Finding the Third Proportional to 851,513 and 1,419,128

Step by Step Solution

1. Step 1: Write the proportion equation
   851,513 : 1,419,128 = 1,419,128 : x
2. Step 2: Convert to fraction form
   851,513/1,419,128 = 1,419,128/x
3. Step 3: Cross multiply
   851,513x = 1,419,128 × 1,419,128
4. Step 4: Simplify right side
   851,513x = 2,013,924,280,384
5. Step 5: Solve for x
   x = 2,013,924,280,384/851,513
6. Step 6: Final answer
   x = 2,365,112.78