Finding the Third Proportional to 162,500 and 259,490

Step by Step Solution

1. Step 1: Write the proportion equation
   162,500 : 259,490 = 259,490 : x
2. Step 2: Convert to fraction form
   162,500/259,490 = 259,490/x
3. Step 3: Cross multiply
   162,500x = 259,490 × 259,490
4. Step 4: Simplify right side
   162,500x = 67,335,060,100
5. Step 5: Solve for x
   x = 67,335,060,100/162,500
6. Step 6: Final answer
   x = 414,369.60