Finding the Third Proportional to 3,639,808 and 5,709,264

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639,808 : 5,709,264 = 5,709,264 : x
2. Step 2: Convert to fraction form
   3,639,808/5,709,264 = 5,709,264/x
3. Step 3: Cross multiply
   3,639,808x = 5,709,264 × 5,709,264
4. Step 4: Simplify right side
   3,639,808x = 32,595,695,421,696
5. Step 5: Solve for x
   x = 32,595,695,421,696/3,639,808
6. Step 6: Final answer
   x = 8,955,333.75