Finding the Third Proportional to 152,858 and 171,812

Step by Step Solution

1. Step 1: Write the proportion equation
   152,858 : 171,812 = 171,812 : x
2. Step 2: Convert to fraction form
   152,858/171,812 = 171,812/x
3. Step 3: Cross multiply
   152,858x = 171,812 × 171,812
4. Step 4: Simplify right side
   152,858x = 29,519,363,344
5. Step 5: Solve for x
   x = 29,519,363,344/152,858
6. Step 6: Final answer
   x = 193,116.25