Finding the Third Proportional to 30,271,516 and 64,579,142

Step by Step Solution

1. Step 1: Write the proportion equation
   30,271,516 : 64,579,142 = 64,579,142 : x
2. Step 2: Convert to fraction form
   30,271,516/64,579,142 = 64,579,142/x
3. Step 3: Cross multiply
   30,271,516x = 64,579,142 × 64,579,142
4. Step 4: Simplify right side
   30,271,516x = 4,170,465,581,456,164
5. Step 5: Solve for x
   x = 4,170,465,581,456,164/30,271,516
6. Step 6: Final answer
   x = 137,768,639.72