Finding the Third Proportional to 56,820 and 88,939

Step by Step Solution

1. Step 1: Write the proportion equation
   56,820 : 88,939 = 88,939 : x
2. Step 2: Convert to fraction form
   56,820/88,939 = 88,939/x
3. Step 3: Cross multiply
   56,820x = 88,939 × 88,939
4. Step 4: Simplify right side
   56,820x = 7,910,145,721
5. Step 5: Solve for x
   x = 7,910,145,721/56,820
6. Step 6: Final answer
   x = 139,214.11