Finding the Third Proportional to 864,724 and 1,892,345

Step by Step Solution

1. Step 1: Write the proportion equation
   864,724 : 1,892,345 = 1,892,345 : x
2. Step 2: Convert to fraction form
   864,724/1,892,345 = 1,892,345/x
3. Step 3: Cross multiply
   864,724x = 1,892,345 × 1,892,345
4. Step 4: Simplify right side
   864,724x = 3,580,969,599,025
5. Step 5: Solve for x
   x = 3,580,969,599,025/864,724
6. Step 6: Final answer
   x = 4,141,170.59