Finding the Third Proportional to 141,916.50 and 212,895

Step by Step Solution

1. Step 1: Write the proportion equation
   141,916.50 : 212,895 = 212,895 : x
2. Step 2: Convert to fraction form
   141,916.50/212,895 = 212,895/x
3. Step 3: Cross multiply
   141,916.50x = 212,895 × 212,895
4. Step 4: Simplify right side
   141,916.50x = 45,324,281,025
5. Step 5: Solve for x
   x = 45,324,281,025/141,916.50
6. Step 6: Final answer
   x = 319,372.88