Finding the Third Proportional to 404,320 and 634,182

Step by Step Solution

1. Step 1: Write the proportion equation
   404,320 : 634,182 = 634,182 : x
2. Step 2: Convert to fraction form
   404,320/634,182 = 634,182/x
3. Step 3: Cross multiply
   404,320x = 634,182 × 634,182
4. Step 4: Simplify right side
   404,320x = 402,186,809,124
5. Step 5: Solve for x
   x = 402,186,809,124/404,320
6. Step 6: Final answer
   x = 994,724.00