Finding the Third Proportional to 404,276.06 and 606,421.69

Step by Step Solution

1. Step 1: Write the proportion equation
   404,276.06 : 606,421.69 = 606,421.69 : x
2. Step 2: Convert to fraction form
   404,276.06/606,421.69 = 606,421.69/x
3. Step 3: Cross multiply
   404,276.06x = 606,421.69 × 606,421.69
4. Step 4: Simplify right side
   404,276.06x = 367,747,263,070.35
5. Step 5: Solve for x
   x = 367,747,263,070.35/404,276.06
6. Step 6: Final answer
   x = 909,643.92