Finding the Third Proportional to 463,388.50 and 693,405

Step by Step Solution

1. Step 1: Write the proportion equation
   463,388.50 : 693,405 = 693,405 : x
2. Step 2: Convert to fraction form
   463,388.50/693,405 = 693,405/x
3. Step 3: Cross multiply
   463,388.50x = 693,405 × 693,405
4. Step 4: Simplify right side
   463,388.50x = 480,810,494,025
5. Step 5: Solve for x
   x = 480,810,494,025/463,388.50
6. Step 6: Final answer
   x = 1,037,596.95