Finding the Third Proportional to 266,150 and 401,997

Step by Step Solution

1. Step 1: Write the proportion equation
   266,150 : 401,997 = 401,997 : x
2. Step 2: Convert to fraction form
   266,150/401,997 = 401,997/x
3. Step 3: Cross multiply
   266,150x = 401,997 × 401,997
4. Step 4: Simplify right side
   266,150x = 161,601,588,009
5. Step 5: Solve for x
   x = 161,601,588,009/266,150
6. Step 6: Final answer
   x = 607,182.37