Finding the Third Proportional to 30,005.44 and 64,384.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,005.44 : 64,384.88 = 64,384.88 : x
2. Step 2: Convert to fraction form
   30,005.44/64,384.88 = 64,384.88/x
3. Step 3: Cross multiply
   30,005.44x = 64,384.88 × 64,384.88
4. Step 4: Simplify right side
   30,005.44x = 4,145,412,128.77
5. Step 5: Solve for x
   x = 4,145,412,128.77/30,005.44
6. Step 6: Final answer
   x = 138,155.36