Finding the Third Proportional to 156,181.50 and 342,171

Step by Step Solution

1. Step 1: Write the proportion equation
   156,181.50 : 342,171 = 342,171 : x
2. Step 2: Convert to fraction form
   156,181.50/342,171 = 342,171/x
3. Step 3: Cross multiply
   156,181.50x = 342,171 × 342,171
4. Step 4: Simplify right side
   156,181.50x = 117,080,993,241
5. Step 5: Solve for x
   x = 117,080,993,241/156,181.50
6. Step 6: Final answer
   x = 749,647.00