Finding the Third Proportional to 189,045 and 364,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   189,045 : 364,234.50 = 364,234.50 : x
2. Step 2: Convert to fraction form
   189,045/364,234.50 = 364,234.50/x
3. Step 3: Cross multiply
   189,045x = 364,234.50 × 364,234.50
4. Step 4: Simplify right side
   189,045x = 132,666,770,990.25
5. Step 5: Solve for x
   x = 132,666,770,990.25/189,045
6. Step 6: Final answer
   x = 701,773.50