Finding the Third Proportional to 401,374 and 550,393.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,374 : 550,393.50 = 550,393.50 : x
2. Step 2: Convert to fraction form
   401,374/550,393.50 = 550,393.50/x
3. Step 3: Cross multiply
   401,374x = 550,393.50 × 550,393.50
4. Step 4: Simplify right side
   401,374x = 302,933,004,842.25
5. Step 5: Solve for x
   x = 302,933,004,842.25/401,374
6. Step 6: Final answer
   x = 754,739.98