Finding the Third Proportional to 226,018 and 309,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   226,018 : 309,916.50 = 309,916.50 : x
2. Step 2: Convert to fraction form
   226,018/309,916.50 = 309,916.50/x
3. Step 3: Cross multiply
   226,018x = 309,916.50 × 309,916.50
4. Step 4: Simplify right side
   226,018x = 96,048,236,972.25
5. Step 5: Solve for x
   x = 96,048,236,972.25/226,018
6. Step 6: Final answer
   x = 424,958.35