Finding the Third Proportional to 45,990 and 99,361

Step by Step Solution

1. Step 1: Write the proportion equation
   45,990 : 99,361 = 99,361 : x
2. Step 2: Convert to fraction form
   45,990/99,361 = 99,361/x
3. Step 3: Cross multiply
   45,990x = 99,361 × 99,361
4. Step 4: Simplify right side
   45,990x = 9,872,608,321
5. Step 5: Solve for x
   x = 9,872,608,321/45,990
6. Step 6: Final answer
   x = 214,668.59