Finding the Third Proportional to 355,320 and 469,476

Step by Step Solution

1. Step 1: Write the proportion equation
   355,320 : 469,476 = 469,476 : x
2. Step 2: Convert to fraction form
   355,320/469,476 = 469,476/x
3. Step 3: Cross multiply
   355,320x = 469,476 × 469,476
4. Step 4: Simplify right side
   355,320x = 220,407,714,576
5. Step 5: Solve for x
   x = 220,407,714,576/355,320
6. Step 6: Final answer
   x = 620,307.65