Finding the Third Proportional to 56,503 and 76,738

Step by Step Solution

1. Step 1: Write the proportion equation
   56,503 : 76,738 = 76,738 : x
2. Step 2: Convert to fraction form
   56,503/76,738 = 76,738/x
3. Step 3: Cross multiply
   56,503x = 76,738 × 76,738
4. Step 4: Simplify right side
   56,503x = 5,888,720,644
5. Step 5: Solve for x
   x = 5,888,720,644/56,503
6. Step 6: Final answer
   x = 104,219.61