Finding the Third Proportional to 45,978.75 and 70,304.63

Step by Step Solution

1. Step 1: Write the proportion equation
   45,978.75 : 70,304.63 = 70,304.63 : x
2. Step 2: Convert to fraction form
   45,978.75/70,304.63 = 70,304.63/x
3. Step 3: Cross multiply
   45,978.75x = 70,304.63 × 70,304.63
4. Step 4: Simplify right side
   45,978.75x = 4,942,740,296.39
5. Step 5: Solve for x
   x = 4,942,740,296.39/45,978.75
6. Step 6: Final answer
   x = 107,500.54