Finding the Third Proportional to 90,756 and 187,344

Step by Step Solution

1. Step 1: Write the proportion equation
   90,756 : 187,344 = 187,344 : x
2. Step 2: Convert to fraction form
   90,756/187,344 = 187,344/x
3. Step 3: Cross multiply
   90,756x = 187,344 × 187,344
4. Step 4: Simplify right side
   90,756x = 35,097,774,336
5. Step 5: Solve for x
   x = 35,097,774,336/90,756
6. Step 6: Final answer
   x = 386,726.77