Finding the Third Proportional to 379,297.69 and 806,869.69

Step by Step Solution

1. Step 1: Write the proportion equation
   379,297.69 : 806,869.69 = 806,869.69 : x
2. Step 2: Convert to fraction form
   379,297.69/806,869.69 = 806,869.69/x
3. Step 3: Cross multiply
   379,297.69x = 806,869.69 × 806,869.69
4. Step 4: Simplify right side
   379,297.69x = 651,038,692,606.35
5. Step 5: Solve for x
   x = 651,038,692,606.35/379,297.69
6. Step 6: Final answer
   x = 1,716,432.01