Finding the Third Proportional to 71,431.50 and 155,562

Step by Step Solution

1. Step 1: Write the proportion equation
   71,431.50 : 155,562 = 155,562 : x
2. Step 2: Convert to fraction form
   71,431.50/155,562 = 155,562/x
3. Step 3: Cross multiply
   71,431.50x = 155,562 × 155,562
4. Step 4: Simplify right side
   71,431.50x = 24,199,535,844
5. Step 5: Solve for x
   x = 24,199,535,844/71,431.50
6. Step 6: Final answer
   x = 338,779.61