Finding the Third Proportional to 11,762,928 and 17,990,424

Step by Step Solution

1. Step 1: Write the proportion equation
   11,762,928 : 17,990,424 = 17,990,424 : x
2. Step 2: Convert to fraction form
   11,762,928/17,990,424 = 17,990,424/x
3. Step 3: Cross multiply
   11,762,928x = 17,990,424 × 17,990,424
4. Step 4: Simplify right side
   11,762,928x = 323,655,355,699,776
5. Step 5: Solve for x
   x = 323,655,355,699,776/11,762,928
6. Step 6: Final answer
   x = 27,514,863.28