Finding the Third Proportional to 403,546,673 and 839,300,478

Step by Step Solution

1. Step 1: Write the proportion equation
   403,546,673 : 839,300,478 = 839,300,478 : x
2. Step 2: Convert to fraction form
   403,546,673/839,300,478 = 839,300,478/x
3. Step 3: Cross multiply
   403,546,673x = 839,300,478 × 839,300,478
4. Step 4: Simplify right side
   403,546,673x = 704,425,292,371,028,480
5. Step 5: Solve for x
   x = 704,425,292,371,028,480/403,546,673
6. Step 6: Final answer
   x = 1,745,585,676.95