Finding the Third Proportional to 89,690 and 190,314

Step by Step Solution

1. Step 1: Write the proportion equation
   89,690 : 190,314 = 190,314 : x
2. Step 2: Convert to fraction form
   89,690/190,314 = 190,314/x
3. Step 3: Cross multiply
   89,690x = 190,314 × 190,314
4. Step 4: Simplify right side
   89,690x = 36,219,418,596
5. Step 5: Solve for x
   x = 36,219,418,596/89,690
6. Step 6: Final answer
   x = 403,828.95