Finding the Third Proportional to 118,981.50 and 259,287

Step by Step Solution

1. Step 1: Write the proportion equation
   118,981.50 : 259,287 = 259,287 : x
2. Step 2: Convert to fraction form
   118,981.50/259,287 = 259,287/x
3. Step 3: Cross multiply
   118,981.50x = 259,287 × 259,287
4. Step 4: Simplify right side
   118,981.50x = 67,229,748,369
5. Step 5: Solve for x
   x = 67,229,748,369/118,981.50
6. Step 6: Final answer
   x = 565,043.71