Finding the Third Proportional to 191,118 and 422,970

Step by Step Solution

1. Step 1: Write the proportion equation
   191,118 : 422,970 = 422,970 : x
2. Step 2: Convert to fraction form
   191,118/422,970 = 422,970/x
3. Step 3: Cross multiply
   191,118x = 422,970 × 422,970
4. Step 4: Simplify right side
   191,118x = 178,903,620,900
5. Step 5: Solve for x
   x = 178,903,620,900/191,118
6. Step 6: Final answer
   x = 936,089.85