Finding the Third Proportional to 144,837.50 and 212,071

Step by Step Solution

1. Step 1: Write the proportion equation
   144,837.50 : 212,071 = 212,071 : x
2. Step 2: Convert to fraction form
   144,837.50/212,071 = 212,071/x
3. Step 3: Cross multiply
   144,837.50x = 212,071 × 212,071
4. Step 4: Simplify right side
   144,837.50x = 44,974,109,041
5. Step 5: Solve for x
   x = 44,974,109,041/144,837.50
6. Step 6: Final answer
   x = 310,514.26