Finding the Third Proportional to 3,709,340 and 7,817,208

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709,340 : 7,817,208 = 7,817,208 : x
2. Step 2: Convert to fraction form
   3,709,340/7,817,208 = 7,817,208/x
3. Step 3: Cross multiply
   3,709,340x = 7,817,208 × 7,817,208
4. Step 4: Simplify right side
   3,709,340x = 61,108,740,915,264
5. Step 5: Solve for x
   x = 61,108,740,915,264/3,709,340
6. Step 6: Final answer
   x = 16,474,289.47