Finding the Third Proportional to 155,542.50 and 211,062

Step by Step Solution

1. Step 1: Write the proportion equation
   155,542.50 : 211,062 = 211,062 : x
2. Step 2: Convert to fraction form
   155,542.50/211,062 = 211,062/x
3. Step 3: Cross multiply
   155,542.50x = 211,062 × 211,062
4. Step 4: Simplify right side
   155,542.50x = 44,547,167,844
5. Step 5: Solve for x
   x = 44,547,167,844/155,542.50
6. Step 6: Final answer
   x = 286,398.69