Finding the Third Proportional to 56,518 and 75,003

Step by Step Solution

1. Step 1: Write the proportion equation
   56,518 : 75,003 = 75,003 : x
2. Step 2: Convert to fraction form
   56,518/75,003 = 75,003/x
3. Step 3: Cross multiply
   56,518x = 75,003 × 75,003
4. Step 4: Simplify right side
   56,518x = 5,625,450,009
5. Step 5: Solve for x
   x = 5,625,450,009/56,518
6. Step 6: Final answer
   x = 99,533.78