Finding the Third Proportional to 476,806.50 and 720,072

Step by Step Solution

1. Step 1: Write the proportion equation
   476,806.50 : 720,072 = 720,072 : x
2. Step 2: Convert to fraction form
   476,806.50/720,072 = 720,072/x
3. Step 3: Cross multiply
   476,806.50x = 720,072 × 720,072
4. Step 4: Simplify right side
   476,806.50x = 518,503,685,184
5. Step 5: Solve for x
   x = 518,503,685,184/476,806.50
6. Step 6: Final answer
   x = 1,087,450.96