Finding the Third Proportional to 66,573 and 89,973

Step by Step Solution

1. Step 1: Write the proportion equation
   66,573 : 89,973 = 89,973 : x
2. Step 2: Convert to fraction form
   66,573/89,973 = 89,973/x
3. Step 3: Cross multiply
   66,573x = 89,973 × 89,973
4. Step 4: Simplify right side
   66,573x = 8,095,140,729
5. Step 5: Solve for x
   x = 8,095,140,729/66,573
6. Step 6: Final answer
   x = 121,597.96