Finding the Third Proportional to 2,709,564.86 and 3,989,498.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709,564.86 : 3,989,498.06 = 3,989,498.06 : x
2. Step 2: Convert to fraction form
   2,709,564.86/3,989,498.06 = 3,989,498.06/x
3. Step 3: Cross multiply
   2,709,564.86x = 3,989,498.06 × 3,989,498.06
4. Step 4: Simplify right side
   2,709,564.86x = 15,916,094,790,691.25
5. Step 5: Solve for x
   x = 15,916,094,790,691.25/2,709,564.86
6. Step 6: Final answer
   x = 5,874,040.90