Finding the Third Proportional to 370,672.50 and 809,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   370,672.50 : 809,314.50 = 809,314.50 : x
2. Step 2: Convert to fraction form
   370,672.50/809,314.50 = 809,314.50/x
3. Step 3: Cross multiply
   370,672.50x = 809,314.50 × 809,314.50
4. Step 4: Simplify right side
   370,672.50x = 654,989,959,910.25
5. Step 5: Solve for x
   x = 654,989,959,910.25/370,672.50
6. Step 6: Final answer
   x = 1,767,031.44