Finding the Third Proportional to 418,536 and 906,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   418,536 : 906,610.50 = 906,610.50 : x
2. Step 2: Convert to fraction form
   418,536/906,610.50 = 906,610.50/x
3. Step 3: Cross multiply
   418,536x = 906,610.50 × 906,610.50
4. Step 4: Simplify right side
   418,536x = 821,942,598,710.25
5. Step 5: Solve for x
   x = 821,942,598,710.25/418,536
6. Step 6: Final answer
   x = 1,963,851.61