Finding the Third Proportional to 77,860 and 175,945

Step by Step Solution

1. Step 1: Write the proportion equation
   77,860 : 175,945 = 175,945 : x
2. Step 2: Convert to fraction form
   77,860/175,945 = 175,945/x
3. Step 3: Cross multiply
   77,860x = 175,945 × 175,945
4. Step 4: Simplify right side
   77,860x = 30,956,643,025
5. Step 5: Solve for x
   x = 30,956,643,025/77,860
6. Step 6: Final answer
   x = 397,593.67