Finding the Third Proportional to 9,993,528 and 21,699,432

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993,528 : 21,699,432 = 21,699,432 : x
2. Step 2: Convert to fraction form
   9,993,528/21,699,432 = 21,699,432/x
3. Step 3: Cross multiply
   9,993,528x = 21,699,432 × 21,699,432
4. Step 4: Simplify right side
   9,993,528x = 470,865,349,122,624
5. Step 5: Solve for x
   x = 470,865,349,122,624/9,993,528
6. Step 6: Final answer
   x = 47,117,029.05