Finding the Third Proportional to 87,345 and 188,061

Step by Step Solution

1. Step 1: Write the proportion equation
   87,345 : 188,061 = 188,061 : x
2. Step 2: Convert to fraction form
   87,345/188,061 = 188,061/x
3. Step 3: Cross multiply
   87,345x = 188,061 × 188,061
4. Step 4: Simplify right side
   87,345x = 35,366,939,721
5. Step 5: Solve for x
   x = 35,366,939,721/87,345
6. Step 6: Final answer
   x = 404,910.87