Finding the Third Proportional to 401,566.50 and 836,406

Step by Step Solution

1. Step 1: Write the proportion equation
   401,566.50 : 836,406 = 836,406 : x
2. Step 2: Convert to fraction form
   401,566.50/836,406 = 836,406/x
3. Step 3: Cross multiply
   401,566.50x = 836,406 × 836,406
4. Step 4: Simplify right side
   401,566.50x = 699,574,996,836
5. Step 5: Solve for x
   x = 699,574,996,836/401,566.50
6. Step 6: Final answer
   x = 1,742,114.93