Finding the Third Proportional to 173,617 and 380,470

Step by Step Solution

1. Step 1: Write the proportion equation
   173,617 : 380,470 = 380,470 : x
2. Step 2: Convert to fraction form
   173,617/380,470 = 380,470/x
3. Step 3: Cross multiply
   173,617x = 380,470 × 380,470
4. Step 4: Simplify right side
   173,617x = 144,757,420,900
5. Step 5: Solve for x
   x = 144,757,420,900/173,617
6. Step 6: Final answer
   x = 833,774.46