Finding the Third Proportional to 30,049.88 and 64,121.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,049.88 : 64,121.63 = 64,121.63 : x
2. Step 2: Convert to fraction form
   30,049.88/64,121.63 = 64,121.63/x
3. Step 3: Cross multiply
   30,049.88x = 64,121.63 × 64,121.63
4. Step 4: Simplify right side
   30,049.88x = 4,111,582,792.64
5. Step 5: Solve for x
   x = 4,111,582,792.64/30,049.88
6. Step 6: Final answer
   x = 136,825.29