Finding the Third Proportional to 38,850 and 56,990

Step by Step Solution

1. Step 1: Write the proportion equation
   38,850 : 56,990 = 56,990 : x
2. Step 2: Convert to fraction form
   38,850/56,990 = 56,990/x
3. Step 3: Cross multiply
   38,850x = 56,990 × 56,990
4. Step 4: Simplify right side
   38,850x = 3,247,860,100
5. Step 5: Solve for x
   x = 3,247,860,100/38,850
6. Step 6: Final answer
   x = 83,600.00