Finding the Third Proportional to 90,088 and 140,122

Step by Step Solution

1. Step 1: Write the proportion equation
   90,088 : 140,122 = 140,122 : x
2. Step 2: Convert to fraction form
   90,088/140,122 = 140,122/x
3. Step 3: Cross multiply
   90,088x = 140,122 × 140,122
4. Step 4: Simplify right side
   90,088x = 19,634,174,884
5. Step 5: Solve for x
   x = 19,634,174,884/90,088
6. Step 6: Final answer
   x = 217,944.40