Finding the Third Proportional to 42,068,048 and 64,621,650

Step by Step Solution

1. Step 1: Write the proportion equation
   42,068,048 : 64,621,650 = 64,621,650 : x
2. Step 2: Convert to fraction form
   42,068,048/64,621,650 = 64,621,650/x
3. Step 3: Cross multiply
   42,068,048x = 64,621,650 × 64,621,650
4. Step 4: Simplify right side
   42,068,048x = 4,175,957,648,722,500
5. Step 5: Solve for x
   x = 4,175,957,648,722,500/42,068,048
6. Step 6: Final answer
   x = 99,266,732.05