Finding the Third Proportional to 188,484 and 403,116

Step by Step Solution

1. Step 1: Write the proportion equation
   188,484 : 403,116 = 403,116 : x
2. Step 2: Convert to fraction form
   188,484/403,116 = 403,116/x
3. Step 3: Cross multiply
   188,484x = 403,116 × 403,116
4. Step 4: Simplify right side
   188,484x = 162,502,509,456
5. Step 5: Solve for x
   x = 162,502,509,456/188,484
6. Step 6: Final answer
   x = 862,155.46