Finding the Third Proportional to 3,509,128 and 7,652,864

Step by Step Solution

1. Step 1: Write the proportion equation
   3,509,128 : 7,652,864 = 7,652,864 : x
2. Step 2: Convert to fraction form
   3,509,128/7,652,864 = 7,652,864/x
3. Step 3: Cross multiply
   3,509,128x = 7,652,864 × 7,652,864
4. Step 4: Simplify right side
   3,509,128x = 58,566,327,402,496
5. Step 5: Solve for x
   x = 58,566,327,402,496/3,509,128
6. Step 6: Final answer
   x = 16,689,709.64