Finding the Third Proportional to 118,627.50 and 259,143

Step by Step Solution

1. Step 1: Write the proportion equation
   118,627.50 : 259,143 = 259,143 : x
2. Step 2: Convert to fraction form
   118,627.50/259,143 = 259,143/x
3. Step 3: Cross multiply
   118,627.50x = 259,143 × 259,143
4. Step 4: Simplify right side
   118,627.50x = 67,155,094,449
5. Step 5: Solve for x
   x = 67,155,094,449/118,627.50
6. Step 6: Final answer
   x = 566,100.56