Finding the Third Proportional to 29,905.88 and 64,762.88

Step by Step Solution

1. Step 1: Write the proportion equation
   29,905.88 : 64,762.88 = 64,762.88 : x
2. Step 2: Convert to fraction form
   29,905.88/64,762.88 = 64,762.88/x
3. Step 3: Cross multiply
   29,905.88x = 64,762.88 × 64,762.88
4. Step 4: Simplify right side
   29,905.88x = 4,194,229,978.27
5. Step 5: Solve for x
   x = 4,194,229,978.27/29,905.88
6. Step 6: Final answer
   x = 140,247.69