Finding the Third Proportional to 284,892.50 and 607,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,892.50 : 607,916.50 = 607,916.50 : x
2. Step 2: Convert to fraction form
   284,892.50/607,916.50 = 607,916.50/x
3. Step 3: Cross multiply
   284,892.50x = 607,916.50 × 607,916.50
4. Step 4: Simplify right side
   284,892.50x = 369,562,470,972.25
5. Step 5: Solve for x
   x = 369,562,470,972.25/284,892.50
6. Step 6: Final answer
   x = 1,297,199.72