Finding the Third Proportional to 30,222.18 and 64,904.26

Step by Step Solution

1. Step 1: Write the proportion equation
   30,222.18 : 64,904.26 = 64,904.26 : x
2. Step 2: Convert to fraction form
   30,222.18/64,904.26 = 64,904.26/x
3. Step 3: Cross multiply
   30,222.18x = 64,904.26 × 64,904.26
4. Step 4: Simplify right side
   30,222.18x = 4,212,562,428.66
5. Step 5: Solve for x
   x = 4,212,562,428.66/30,222.18
6. Step 6: Final answer
   x = 139,386.47