Finding the Third Proportional to 139,892.48 and 211,168.27

Step by Step Solution

1. Step 1: Write the proportion equation
   139,892.48 : 211,168.27 = 211,168.27 : x
2. Step 2: Convert to fraction form
   139,892.48/211,168.27 = 211,168.27/x
3. Step 3: Cross multiply
   139,892.48x = 211,168.27 × 211,168.27
4. Step 4: Simplify right side
   139,892.48x = 44,592,036,407.07
5. Step 5: Solve for x
   x = 44,592,036,407.07/139,892.48
6. Step 6: Final answer
   x = 318,759.34