Finding the Third Proportional to 9,139,570 and 20,072,480

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,570 : 20,072,480 = 20,072,480 : x
2. Step 2: Convert to fraction form
   9,139,570/20,072,480 = 20,072,480/x
3. Step 3: Cross multiply
   9,139,570x = 20,072,480 × 20,072,480
4. Step 4: Simplify right side
   9,139,570x = 402,904,453,350,400
5. Step 5: Solve for x
   x = 402,904,453,350,400/9,139,570
6. Step 6: Final answer
   x = 44,083,523.99