Finding the Third Proportional to 72,911 and 158,998

Step by Step Solution

1. Step 1: Write the proportion equation
   72,911 : 158,998 = 158,998 : x
2. Step 2: Convert to fraction form
   72,911/158,998 = 158,998/x
3. Step 3: Cross multiply
   72,911x = 158,998 × 158,998
4. Step 4: Simplify right side
   72,911x = 25,280,364,004
5. Step 5: Solve for x
   x = 25,280,364,004/72,911
6. Step 6: Final answer
   x = 346,729.08