Finding the Third Proportional to 20,503.13 and 31,916.53

Step by Step Solution

1. Step 1: Write the proportion equation
   20,503.13 : 31,916.53 = 31,916.53 : x
2. Step 2: Convert to fraction form
   20,503.13/31,916.53 = 31,916.53/x
3. Step 3: Cross multiply
   20,503.13x = 31,916.53 × 31,916.53
4. Step 4: Simplify right side
   20,503.13x = 1,018,664,967.03
5. Step 5: Solve for x
   x = 1,018,664,967.03/20,503.13
6. Step 6: Final answer
   x = 49,683.40