Finding the Third Proportional to 99,372 and 147,705

Step by Step Solution

1. Step 1: Write the proportion equation
   99,372 : 147,705 = 147,705 : x
2. Step 2: Convert to fraction form
   99,372/147,705 = 147,705/x
3. Step 3: Cross multiply
   99,372x = 147,705 × 147,705
4. Step 4: Simplify right side
   99,372x = 21,816,767,025
5. Step 5: Solve for x
   x = 21,816,767,025/99,372
6. Step 6: Final answer
   x = 219,546.42