Finding the Third Proportional to 76,910 and 170,404.75

Step by Step Solution

1. Step 1: Write the proportion equation
   76,910 : 170,404.75 = 170,404.75 : x
2. Step 2: Convert to fraction form
   76,910/170,404.75 = 170,404.75/x
3. Step 3: Cross multiply
   76,910x = 170,404.75 × 170,404.75
4. Step 4: Simplify right side
   76,910x = 29,037,778,822.56
5. Step 5: Solve for x
   x = 29,037,778,822.56/76,910
6. Step 6: Final answer
   x = 377,555.31