Finding the Third Proportional to 3,988,711.69 and 5,808,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988,711.69 : 5,808,631.50 = 5,808,631.50 : x
2. Step 2: Convert to fraction form
   3,988,711.69/5,808,631.50 = 5,808,631.50/x
3. Step 3: Cross multiply
   3,988,711.69x = 5,808,631.50 × 5,808,631.50
4. Step 4: Simplify right side
   3,988,711.69x = 33,740,199,902,792.25
5. Step 5: Solve for x
   x = 33,740,199,902,792.25/3,988,711.69
6. Step 6: Final answer
   x = 8,458,921.71