Finding the Third Proportional to 679,798.69 and 919,981.69

Step by Step Solution

1. Step 1: Write the proportion equation
   679,798.69 : 919,981.69 = 919,981.69 : x
2. Step 2: Convert to fraction form
   679,798.69/919,981.69 = 919,981.69/x
3. Step 3: Cross multiply
   679,798.69x = 919,981.69 × 919,981.69
4. Step 4: Simplify right side
   679,798.69x = 846,366,305,335.35
5. Step 5: Solve for x
   x = 846,366,305,335.35/679,798.69
6. Step 6: Final answer
   x = 1,245,024.92