Finding the Third Proportional to 401,922 and 803,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,922 : 803,839.50 = 803,839.50 : x
2. Step 2: Convert to fraction form
   401,922/803,839.50 = 803,839.50/x
3. Step 3: Cross multiply
   401,922x = 803,839.50 × 803,839.50
4. Step 4: Simplify right side
   401,922x = 646,157,941,760.25
5. Step 5: Solve for x
   x = 646,157,941,760.25/401,922
6. Step 6: Final answer
   x = 1,607,670.00