Finding the Third Proportional to 443,491.50 and 918,483

Step by Step Solution

1. Step 1: Write the proportion equation
   443,491.50 : 918,483 = 918,483 : x
2. Step 2: Convert to fraction form
   443,491.50/918,483 = 918,483/x
3. Step 3: Cross multiply
   443,491.50x = 918,483 × 918,483
4. Step 4: Simplify right side
   443,491.50x = 843,611,021,289
5. Step 5: Solve for x
   x = 843,611,021,289/443,491.50
6. Step 6: Final answer
   x = 1,902,203.36