Finding the Third Proportional to 906,607.50 and 1,231,996.50

Step by Step Solution

1. Step 1: Write the proportion equation
   906,607.50 : 1,231,996.50 = 1,231,996.50 : x
2. Step 2: Convert to fraction form
   906,607.50/1,231,996.50 = 1,231,996.50/x
3. Step 3: Cross multiply
   906,607.50x = 1,231,996.50 × 1,231,996.50
4. Step 4: Simplify right side
   906,607.50x = 1,517,815,376,012.25
5. Step 5: Solve for x
   x = 1,517,815,376,012.25/906,607.50
6. Step 6: Final answer
   x = 1,674,170.33