Finding the Third Proportional to 172,570.50 and 376,518

Step by Step Solution

1. Step 1: Write the proportion equation
   172,570.50 : 376,518 = 376,518 : x
2. Step 2: Convert to fraction form
   172,570.50/376,518 = 376,518/x
3. Step 3: Cross multiply
   172,570.50x = 376,518 × 376,518
4. Step 4: Simplify right side
   172,570.50x = 141,765,804,324
5. Step 5: Solve for x
   x = 141,765,804,324/172,570.50
6. Step 6: Final answer
   x = 821,495.01