Finding the Third Proportional to 155,930 and 342,546

Step by Step Solution

1. Step 1: Write the proportion equation
   155,930 : 342,546 = 342,546 : x
2. Step 2: Convert to fraction form
   155,930/342,546 = 342,546/x
3. Step 3: Cross multiply
   155,930x = 342,546 × 342,546
4. Step 4: Simplify right side
   155,930x = 117,337,762,116
5. Step 5: Solve for x
   x = 117,337,762,116/155,930
6. Step 6: Final answer
   x = 752,502.80