Finding the Third Proportional to 373,431 and 819,426

Step by Step Solution

1. Step 1: Write the proportion equation
   373,431 : 819,426 = 819,426 : x
2. Step 2: Convert to fraction form
   373,431/819,426 = 819,426/x
3. Step 3: Cross multiply
   373,431x = 819,426 × 819,426
4. Step 4: Simplify right side
   373,431x = 671,458,969,476
5. Step 5: Solve for x
   x = 671,458,969,476/373,431
6. Step 6: Final answer
   x = 1,798,080.42