Finding the Third Proportional to 19,886,340 and 30,708,666

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886,340 : 30,708,666 = 30,708,666 : x
2. Step 2: Convert to fraction form
   19,886,340/30,708,666 = 30,708,666/x
3. Step 3: Cross multiply
   19,886,340x = 30,708,666 × 30,708,666
4. Step 4: Simplify right side
   19,886,340x = 943,022,167,499,556
5. Step 5: Solve for x
   x = 943,022,167,499,556/19,886,340
6. Step 6: Final answer
   x = 47,420,599.64