Finding the Third Proportional to 118,189 and 259,341.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,189 : 259,341.50 = 259,341.50 : x
2. Step 2: Convert to fraction form
   118,189/259,341.50 = 259,341.50/x
3. Step 3: Cross multiply
   118,189x = 259,341.50 × 259,341.50
4. Step 4: Simplify right side
   118,189x = 67,258,013,622.25
5. Step 5: Solve for x
   x = 67,258,013,622.25/118,189
6. Step 6: Final answer
   x = 569,071.69