Finding the Third Proportional to 40,290 and 87,501

Step by Step Solution

1. Step 1: Write the proportion equation
   40,290 : 87,501 = 87,501 : x
2. Step 2: Convert to fraction form
   40,290/87,501 = 87,501/x
3. Step 3: Cross multiply
   40,290x = 87,501 × 87,501
4. Step 4: Simplify right side
   40,290x = 7,656,425,001
5. Step 5: Solve for x
   x = 7,656,425,001/40,290
6. Step 6: Final answer
   x = 190,032.89