Finding the Third Proportional to 118,153.50 and 254,859

Step by Step Solution

1. Step 1: Write the proportion equation
   118,153.50 : 254,859 = 254,859 : x
2. Step 2: Convert to fraction form
   118,153.50/254,859 = 254,859/x
3. Step 3: Cross multiply
   118,153.50x = 254,859 × 254,859
4. Step 4: Simplify right side
   118,153.50x = 64,953,109,881
5. Step 5: Solve for x
   x = 64,953,109,881/118,153.50
6. Step 6: Final answer
   x = 549,734.96