Finding the Third Proportional to 191,654 and 403,168

Step by Step Solution

1. Step 1: Write the proportion equation
   191,654 : 403,168 = 403,168 : x
2. Step 2: Convert to fraction form
   191,654/403,168 = 403,168/x
3. Step 3: Cross multiply
   191,654x = 403,168 × 403,168
4. Step 4: Simplify right side
   191,654x = 162,544,436,224
5. Step 5: Solve for x
   x = 162,544,436,224/191,654
6. Step 6: Final answer
   x = 848,113.98