Finding the Third Proportional to 342,164 and 746,440

Step by Step Solution

1. Step 1: Write the proportion equation
   342,164 : 746,440 = 746,440 : x
2. Step 2: Convert to fraction form
   342,164/746,440 = 746,440/x
3. Step 3: Cross multiply
   342,164x = 746,440 × 746,440
4. Step 4: Simplify right side
   342,164x = 557,172,673,600
5. Step 5: Solve for x
   x = 557,172,673,600/342,164
6. Step 6: Final answer
   x = 1,628,379.00