Finding the Third Proportional to 3,709,557 and 8,072,343

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709,557 : 8,072,343 = 8,072,343 : x
2. Step 2: Convert to fraction form
   3,709,557/8,072,343 = 8,072,343/x
3. Step 3: Cross multiply
   3,709,557x = 8,072,343 × 8,072,343
4. Step 4: Simplify right side
   3,709,557x = 65,162,721,509,649
5. Step 5: Solve for x
   x = 65,162,721,509,649/3,709,557
6. Step 6: Final answer
   x = 17,566,173.40