Finding the Third Proportional to 342,345 and 525,066

Step by Step Solution

1. Step 1: Write the proportion equation
   342,345 : 525,066 = 525,066 : x
2. Step 2: Convert to fraction form
   342,345/525,066 = 525,066/x
3. Step 3: Cross multiply
   342,345x = 525,066 × 525,066
4. Step 4: Simplify right side
   342,345x = 275,694,304,356
5. Step 5: Solve for x
   x = 275,694,304,356/342,345
6. Step 6: Final answer
   x = 805,311.32