Finding the Third Proportional to 148,188 and 320,066

Step by Step Solution

1. Step 1: Write the proportion equation
   148,188 : 320,066 = 320,066 : x
2. Step 2: Convert to fraction form
   148,188/320,066 = 320,066/x
3. Step 3: Cross multiply
   148,188x = 320,066 × 320,066
4. Step 4: Simplify right side
   148,188x = 102,442,244,356
5. Step 5: Solve for x
   x = 102,442,244,356/148,188
6. Step 6: Final answer
   x = 691,299.19