Finding the Third Proportional to 191,608 and 403,066

Step by Step Solution

1. Step 1: Write the proportion equation
   191,608 : 403,066 = 403,066 : x
2. Step 2: Convert to fraction form
   191,608/403,066 = 403,066/x
3. Step 3: Cross multiply
   191,608x = 403,066 × 403,066
4. Step 4: Simplify right side
   191,608x = 162,462,200,356
5. Step 5: Solve for x
   x = 162,462,200,356/191,608
6. Step 6: Final answer
   x = 847,888.40