Finding the Third Proportional to 164,430 and 341,820

Step by Step Solution

1. Step 1: Write the proportion equation
   164,430 : 341,820 = 341,820 : x
2. Step 2: Convert to fraction form
   164,430/341,820 = 341,820/x
3. Step 3: Cross multiply
   164,430x = 341,820 × 341,820
4. Step 4: Simplify right side
   164,430x = 116,840,912,400
5. Step 5: Solve for x
   x = 116,840,912,400/164,430
6. Step 6: Final answer
   x = 710,581.48