Finding the Third Proportional to 30,067.63 and 64,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,067.63 : 64,577.50 = 64,577.50 : x
2. Step 2: Convert to fraction form
   30,067.63/64,577.50 = 64,577.50/x
3. Step 3: Cross multiply
   30,067.63x = 64,577.50 × 64,577.50
4. Step 4: Simplify right side
   30,067.63x = 4,170,253,506.25
5. Step 5: Solve for x
   x = 4,170,253,506.25/30,067.63
6. Step 6: Final answer
   x = 138,695.81