Finding the Third Proportional to 172,146 and 370,656

Step by Step Solution

1. Step 1: Write the proportion equation
   172,146 : 370,656 = 370,656 : x
2. Step 2: Convert to fraction form
   172,146/370,656 = 370,656/x
3. Step 3: Cross multiply
   172,146x = 370,656 × 370,656
4. Step 4: Simplify right side
   172,146x = 137,385,870,336
5. Step 5: Solve for x
   x = 137,385,870,336/172,146
6. Step 6: Final answer
   x = 798,077.62