Finding the Third Proportional to 118,431 and 250,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,431 : 250,168.50 = 250,168.50 : x
2. Step 2: Convert to fraction form
   118,431/250,168.50 = 250,168.50/x
3. Step 3: Cross multiply
   118,431x = 250,168.50 × 250,168.50
4. Step 4: Simplify right side
   118,431x = 62,584,278,392.25
5. Step 5: Solve for x
   x = 62,584,278,392.25/118,431
6. Step 6: Final answer
   x = 528,445.07