Finding the Third Proportional to 42,207 and 90,064

Step by Step Solution

1. Step 1: Write the proportion equation
   42,207 : 90,064 = 90,064 : x
2. Step 2: Convert to fraction form
   42,207/90,064 = 90,064/x
3. Step 3: Cross multiply
   42,207x = 90,064 × 90,064
4. Step 4: Simplify right side
   42,207x = 8,111,524,096
5. Step 5: Solve for x
   x = 8,111,524,096/42,207
6. Step 6: Final answer
   x = 192,184.33