Finding the Third Proportional to 9,988,558 and 21,493,071

Step by Step Solution

1. Step 1: Write the proportion equation
   9,988,558 : 21,493,071 = 21,493,071 : x
2. Step 2: Convert to fraction form
   9,988,558/21,493,071 = 21,493,071/x
3. Step 3: Cross multiply
   9,988,558x = 21,493,071 × 21,493,071
4. Step 4: Simplify right side
   9,988,558x = 461,952,101,011,041
5. Step 5: Solve for x
   x = 461,952,101,011,041/9,988,558
6. Step 6: Final answer
   x = 46,248,127.21