Finding the Third Proportional to 9,139,574 and 20,072,488

Step by Step Solution

1. Step 1: Write the proportion equation
   9,139,574 : 20,072,488 = 20,072,488 : x
2. Step 2: Convert to fraction form
   9,139,574/20,072,488 = 20,072,488/x
3. Step 3: Cross multiply
   9,139,574x = 20,072,488 × 20,072,488
4. Step 4: Simplify right side
   9,139,574x = 402,904,774,510,144
5. Step 5: Solve for x
   x = 402,904,774,510,144/9,139,574
6. Step 6: Final answer
   x = 44,083,539.84