Finding the Third Proportional to 9,389,523 and 20,572,386

Step by Step Solution

1. Step 1: Write the proportion equation
   9,389,523 : 20,572,386 = 20,572,386 : x
2. Step 2: Convert to fraction form
   9,389,523/20,572,386 = 20,572,386/x
3. Step 3: Cross multiply
   9,389,523x = 20,572,386 × 20,572,386
4. Step 4: Simplify right side
   9,389,523x = 423,223,065,732,996
5. Step 5: Solve for x
   x = 423,223,065,732,996/9,389,523
6. Step 6: Final answer
   x = 45,073,968.69