Finding the Third Proportional to 155,315.81 and 335,098.69

Step by Step Solution

1. Step 1: Write the proportion equation
   155,315.81 : 335,098.69 = 335,098.69 : x
2. Step 2: Convert to fraction form
   155,315.81/335,098.69 = 335,098.69/x
3. Step 3: Cross multiply
   155,315.81x = 335,098.69 × 335,098.69
4. Step 4: Simplify right side
   155,315.81x = 112,291,130,364.22
5. Step 5: Solve for x
   x = 112,291,130,364.22/155,315.81
6. Step 6: Final answer
   x = 722,985.82