Finding the Third Proportional to 412,900.50 and 611,676

Step by Step Solution

1. Step 1: Write the proportion equation
   412,900.50 : 611,676 = 611,676 : x
2. Step 2: Convert to fraction form
   412,900.50/611,676 = 611,676/x
3. Step 3: Cross multiply
   412,900.50x = 611,676 × 611,676
4. Step 4: Simplify right side
   412,900.50x = 374,147,528,976
5. Step 5: Solve for x
   x = 374,147,528,976/412,900.50
6. Step 6: Final answer
   x = 906,144.53