Finding the Third Proportional to 70,487 and 158,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,487 : 158,717.50 = 158,717.50 : x
2. Step 2: Convert to fraction form
   70,487/158,717.50 = 158,717.50/x
3. Step 3: Cross multiply
   70,487x = 158,717.50 × 158,717.50
4. Step 4: Simplify right side
   70,487x = 25,191,244,806.25
5. Step 5: Solve for x
   x = 25,191,244,806.25/70,487
6. Step 6: Final answer
   x = 357,388.52