Finding the Third Proportional to 84,441.55 and 156,424.61

Step by Step Solution

1. Step 1: Write the proportion equation
   84,441.55 : 156,424.61 = 156,424.61 : x
2. Step 2: Convert to fraction form
   84,441.55/156,424.61 = 156,424.61/x
3. Step 3: Cross multiply
   84,441.55x = 156,424.61 × 156,424.61
4. Step 4: Simplify right side
   84,441.55x = 24,468,657,196.05
5. Step 5: Solve for x
   x = 24,468,657,196.05/84,441.55
6. Step 6: Final answer
   x = 289,770.34