Finding the Third Proportional to 71,398 and 155,086.75

Step by Step Solution

1. Step 1: Write the proportion equation
   71,398 : 155,086.75 = 155,086.75 : x
2. Step 2: Convert to fraction form
   71,398/155,086.75 = 155,086.75/x
3. Step 3: Cross multiply
   71,398x = 155,086.75 × 155,086.75
4. Step 4: Simplify right side
   71,398x = 24,051,900,025.56
5. Step 5: Solve for x
   x = 24,051,900,025.56/71,398
6. Step 6: Final answer
   x = 336,870.78