Finding the Third Proportional to 191,322 and 418,968

Step by Step Solution

1. Step 1: Write the proportion equation
   191,322 : 418,968 = 418,968 : x
2. Step 2: Convert to fraction form
   191,322/418,968 = 418,968/x
3. Step 3: Cross multiply
   191,322x = 418,968 × 418,968
4. Step 4: Simplify right side
   191,322x = 175,534,185,024
5. Step 5: Solve for x
   x = 175,534,185,024/191,322
6. Step 6: Final answer
   x = 917,480.40