Finding the Third Proportional to 103,672 and 215,132

Step by Step Solution

1. Step 1: Write the proportion equation
   103,672 : 215,132 = 215,132 : x
2. Step 2: Convert to fraction form
   103,672/215,132 = 215,132/x
3. Step 3: Cross multiply
   103,672x = 215,132 × 215,132
4. Step 4: Simplify right side
   103,672x = 46,281,777,424
5. Step 5: Solve for x
   x = 46,281,777,424/103,672
6. Step 6: Final answer
   x = 446,425.05