Finding the Third Proportional to 72,031.78 and 155,602.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,031.78 : 155,602.69 = 155,602.69 : x
2. Step 2: Convert to fraction form
   72,031.78/155,602.69 = 155,602.69/x
3. Step 3: Cross multiply
   72,031.78x = 155,602.69 × 155,602.69
4. Step 4: Simplify right side
   72,031.78x = 24,212,196,357.22
5. Step 5: Solve for x
   x = 24,212,196,357.22/72,031.78
6. Step 6: Final answer
   x = 336,132.13