Finding the Third Proportional to 191,766 and 418,140

Step by Step Solution

1. Step 1: Write the proportion equation
   191,766 : 418,140 = 418,140 : x
2. Step 2: Convert to fraction form
   191,766/418,140 = 418,140/x
3. Step 3: Cross multiply
   191,766x = 418,140 × 418,140
4. Step 4: Simplify right side
   191,766x = 174,841,059,600
5. Step 5: Solve for x
   x = 174,841,059,600/191,766
6. Step 6: Final answer
   x = 911,741.70