Finding the Third Proportional to 118,917 and 158,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,917 : 158,530.50 = 158,530.50 : x
2. Step 2: Convert to fraction form
   118,917/158,530.50 = 158,530.50/x
3. Step 3: Cross multiply
   118,917x = 158,530.50 × 158,530.50
4. Step 4: Simplify right side
   118,917x = 25,131,919,430.25
5. Step 5: Solve for x
   x = 25,131,919,430.25/118,917
6. Step 6: Final answer
   x = 211,340.01