Finding the Third Proportional to 175,956 and 391,168

Step by Step Solution

1. Step 1: Write the proportion equation
   175,956 : 391,168 = 391,168 : x
2. Step 2: Convert to fraction form
   175,956/391,168 = 391,168/x
3. Step 3: Cross multiply
   175,956x = 391,168 × 391,168
4. Step 4: Simplify right side
   175,956x = 153,012,404,224
5. Step 5: Solve for x
   x = 153,012,404,224/175,956
6. Step 6: Final answer
   x = 869,606.06