Finding the Third Proportional to 190,036 and 401,528

Step by Step Solution

1. Step 1: Write the proportion equation
   190,036 : 401,528 = 401,528 : x
2. Step 2: Convert to fraction form
   190,036/401,528 = 401,528/x
3. Step 3: Cross multiply
   190,036x = 401,528 × 401,528
4. Step 4: Simplify right side
   190,036x = 161,224,734,784
5. Step 5: Solve for x
   x = 161,224,734,784/190,036
6. Step 6: Final answer
   x = 848,390.49