Finding the Third Proportional to 45,609.75 and 99,625.78

Step by Step Solution

1. Step 1: Write the proportion equation
   45,609.75 : 99,625.78 = 99,625.78 : x
2. Step 2: Convert to fraction form
   45,609.75/99,625.78 = 99,625.78/x
3. Step 3: Cross multiply
   45,609.75x = 99,625.78 × 99,625.78
4. Step 4: Simplify right side
   45,609.75x = 9,925,296,289.67
5. Step 5: Solve for x
   x = 9,925,296,289.67/45,609.75
6. Step 6: Final answer
   x = 217,613.48