Finding the Third Proportional to 56,649 and 89,973

Step by Step Solution

1. Step 1: Write the proportion equation
   56,649 : 89,973 = 89,973 : x
2. Step 2: Convert to fraction form
   56,649/89,973 = 89,973/x
3. Step 3: Cross multiply
   56,649x = 89,973 × 89,973
4. Step 4: Simplify right side
   56,649x = 8,095,140,729
5. Step 5: Solve for x
   x = 8,095,140,729/56,649
6. Step 6: Final answer
   x = 142,899.98