Finding the Third Proportional to 90,531 and 118,287

Step by Step Solution

1. Step 1: Write the proportion equation
   90,531 : 118,287 = 118,287 : x
2. Step 2: Convert to fraction form
   90,531/118,287 = 118,287/x
3. Step 3: Cross multiply
   90,531x = 118,287 × 118,287
4. Step 4: Simplify right side
   90,531x = 13,991,814,369
5. Step 5: Solve for x
   x = 13,991,814,369/90,531
6. Step 6: Final answer
   x = 154,552.74