Finding the Third Proportional to 42,206 and 90,063

Step by Step Solution

1. Step 1: Write the proportion equation
   42,206 : 90,063 = 90,063 : x
2. Step 2: Convert to fraction form
   42,206/90,063 = 90,063/x
3. Step 3: Cross multiply
   42,206x = 90,063 × 90,063
4. Step 4: Simplify right side
   42,206x = 8,111,343,969
5. Step 5: Solve for x
   x = 8,111,343,969/42,206
6. Step 6: Final answer
   x = 192,184.62