Finding the Third Proportional to 199,506 and 426,654

Step by Step Solution

1. Step 1: Write the proportion equation
   199,506 : 426,654 = 426,654 : x
2. Step 2: Convert to fraction form
   199,506/426,654 = 426,654/x
3. Step 3: Cross multiply
   199,506x = 426,654 × 426,654
4. Step 4: Simplify right side
   199,506x = 182,033,635,716
5. Step 5: Solve for x
   x = 182,033,635,716/199,506
6. Step 6: Final answer
   x = 912,421.86