Finding the Third Proportional to 370,039.50 and 806,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   370,039.50 : 806,899.50 = 806,899.50 : x
2. Step 2: Convert to fraction form
   370,039.50/806,899.50 = 806,899.50/x
3. Step 3: Cross multiply
   370,039.50x = 806,899.50 × 806,899.50
4. Step 4: Simplify right side
   370,039.50x = 651,086,803,100.25
5. Step 5: Solve for x
   x = 651,086,803,100.25/370,039.50
6. Step 6: Final answer
   x = 1,759,506.22