Finding the Third Proportional to 45,834 and 99,390

Step by Step Solution

1. Step 1: Write the proportion equation
   45,834 : 99,390 = 99,390 : x
2. Step 2: Convert to fraction form
   45,834/99,390 = 99,390/x
3. Step 3: Cross multiply
   45,834x = 99,390 × 99,390
4. Step 4: Simplify right side
   45,834x = 9,878,372,100
5. Step 5: Solve for x
   x = 9,878,372,100/45,834
6. Step 6: Final answer
   x = 215,524.98