Finding the Third Proportional to 171,433 and 256,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,433 : 256,980.50 = 256,980.50 : x
2. Step 2: Convert to fraction form
   171,433/256,980.50 = 256,980.50/x
3. Step 3: Cross multiply
   171,433x = 256,980.50 × 256,980.50
4. Step 4: Simplify right side
   171,433x = 66,038,977,380.25
5. Step 5: Solve for x
   x = 66,038,977,380.25/171,433
6. Step 6: Final answer
   x = 385,217.42