Finding the Third Proportional to 207,370 and 458,516

Step by Step Solution

1. Step 1: Write the proportion equation
   207,370 : 458,516 = 458,516 : x
2. Step 2: Convert to fraction form
   207,370/458,516 = 458,516/x
3. Step 3: Cross multiply
   207,370x = 458,516 × 458,516
4. Step 4: Simplify right side
   207,370x = 210,236,922,256
5. Step 5: Solve for x
   x = 210,236,922,256/207,370
6. Step 6: Final answer
   x = 1,013,825.15