Finding the Third Proportional to 170,865 and 374,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,865 : 374,638.50 = 374,638.50 : x
2. Step 2: Convert to fraction form
   170,865/374,638.50 = 374,638.50/x
3. Step 3: Cross multiply
   170,865x = 374,638.50 × 374,638.50
4. Step 4: Simplify right side
   170,865x = 140,354,005,682.25
5. Step 5: Solve for x
   x = 140,354,005,682.25/170,865
6. Step 6: Final answer
   x = 821,432.16