Finding the Third Proportional to 173,889 and 380,988

Step by Step Solution

1. Step 1: Write the proportion equation
   173,889 : 380,988 = 380,988 : x
2. Step 2: Convert to fraction form
   173,889/380,988 = 380,988/x
3. Step 3: Cross multiply
   173,889x = 380,988 × 380,988
4. Step 4: Simplify right side
   173,889x = 145,151,856,144
5. Step 5: Solve for x
   x = 145,151,856,144/173,889
6. Step 6: Final answer
   x = 834,738.58