Finding the Third Proportional to 2,586,691.50 and 3,915,822

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,691.50 : 3,915,822 = 3,915,822 : x
2. Step 2: Convert to fraction form
   2,586,691.50/3,915,822 = 3,915,822/x
3. Step 3: Cross multiply
   2,586,691.50x = 3,915,822 × 3,915,822
4. Step 4: Simplify right side
   2,586,691.50x = 15,333,661,935,684
5. Step 5: Solve for x
   x = 15,333,661,935,684/2,586,691.50
6. Step 6: Final answer
   x = 5,927,905.18