Finding the Third Proportional to 144,840.75 and 212,076

Step by Step Solution

1. Step 1: Write the proportion equation
   144,840.75 : 212,076 = 212,076 : x
2. Step 2: Convert to fraction form
   144,840.75/212,076 = 212,076/x
3. Step 3: Cross multiply
   144,840.75x = 212,076 × 212,076
4. Step 4: Simplify right side
   144,840.75x = 44,976,229,776
5. Step 5: Solve for x
   x = 44,976,229,776/144,840.75
6. Step 6: Final answer
   x = 310,521.93