Finding the Third Proportional to 45.84 and 99.91

Step by Step Solution

1. Step 1: Write the proportion equation
   45.84 : 99.91 = 99.91 : x
2. Step 2: Convert to fraction form
   45.84/99.91 = 99.91/x
3. Step 3: Cross multiply
   45.84x = 99.91 × 99.91
4. Step 4: Simplify right side
   45.84x = 9,981.26
5. Step 5: Solve for x
   x = 9,981.26/45.84
6. Step 6: Final answer
   x = 217.72