Finding the Third Proportional to 19,886,336 and 30,708,660

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886,336 : 30,708,660 = 30,708,660 : x
2. Step 2: Convert to fraction form
   19,886,336/30,708,660 = 30,708,660/x
3. Step 3: Cross multiply
   19,886,336x = 30,708,660 × 30,708,660
4. Step 4: Simplify right side
   19,886,336x = 943,021,798,995,600
5. Step 5: Solve for x
   x = 943,021,798,995,600/19,886,336
6. Step 6: Final answer
   x = 47,420,590.65