Finding the Third Proportional to 99,360 and 147,112

Step by Step Solution

1. Step 1: Write the proportion equation
   99,360 : 147,112 = 147,112 : x
2. Step 2: Convert to fraction form
   99,360/147,112 = 147,112/x
3. Step 3: Cross multiply
   99,360x = 147,112 × 147,112
4. Step 4: Simplify right side
   99,360x = 21,641,940,544
5. Step 5: Solve for x
   x = 21,641,940,544/99,360
6. Step 6: Final answer
   x = 217,813.41