Finding the Third Proportional to 9,139,576 and 20,072,492

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,576 : 20,072,492 = 20,072,492 : x
2. Step 2: Convert to fraction form
   9,139,576/20,072,492 = 20,072,492/x
3. Step 3: Cross multiply
   9,139,576x = 20,072,492 × 20,072,492
4. Step 4: Simplify right side
   9,139,576x = 402,904,935,090,064
5. Step 5: Solve for x
   x = 402,904,935,090,064/9,139,576
6. Step 6: Final answer
   x = 44,083,547.76