Finding the Third Proportional to 3,379,776 and 7,039,128

Step by Step Solution

1. Step 1: Write the proportion equation
   3,379,776 : 7,039,128 = 7,039,128 : x
2. Step 2: Convert to fraction form
   3,379,776/7,039,128 = 7,039,128/x
3. Step 3: Cross multiply
   3,379,776x = 7,039,128 × 7,039,128
4. Step 4: Simplify right side
   3,379,776x = 49,549,323,000,384
5. Step 5: Solve for x
   x = 49,549,323,000,384/3,379,776
6. Step 6: Final answer
   x = 14,660,534.60