Finding the Third Proportional to 173,988 and 369,299.25

Step by Step Solution

1. Step 1: Write the proportion equation
   173,988 : 369,299.25 = 369,299.25 : x
2. Step 2: Convert to fraction form
   173,988/369,299.25 = 369,299.25/x
3. Step 3: Cross multiply
   173,988x = 369,299.25 × 369,299.25
4. Step 4: Simplify right side
   173,988x = 136,381,936,050.56
5. Step 5: Solve for x
   x = 136,381,936,050.56/173,988
6. Step 6: Final answer
   x = 783,858.29