Finding the Third Proportional to 403,792.50 and 874,455

Step by Step Solution

1. Step 1: Write the proportion equation
   403,792.50 : 874,455 = 874,455 : x
2. Step 2: Convert to fraction form
   403,792.50/874,455 = 874,455/x
3. Step 3: Cross multiply
   403,792.50x = 874,455 × 874,455
4. Step 4: Simplify right side
   403,792.50x = 764,671,547,025
5. Step 5: Solve for x
   x = 764,671,547,025/403,792.50
6. Step 6: Final answer
   x = 1,893,724.00