Finding the Third Proportional to 156,914 and 345,499

Step by Step Solution

1. Step 1: Write the proportion equation
   156,914 : 345,499 = 345,499 : x
2. Step 2: Convert to fraction form
   156,914/345,499 = 345,499/x
3. Step 3: Cross multiply
   156,914x = 345,499 × 345,499
4. Step 4: Simplify right side
   156,914x = 119,369,559,001
5. Step 5: Solve for x
   x = 119,369,559,001/156,914
6. Step 6: Final answer
   x = 760,732.37