Finding the Third Proportional to 189,595.50 and 402,519

Step by Step Solution

1. Step 1: Write the proportion equation
   189,595.50 : 402,519 = 402,519 : x
2. Step 2: Convert to fraction form
   189,595.50/402,519 = 402,519/x
3. Step 3: Cross multiply
   189,595.50x = 402,519 × 402,519
4. Step 4: Simplify right side
   189,595.50x = 162,021,545,361
5. Step 5: Solve for x
   x = 162,021,545,361/189,595.50
6. Step 6: Final answer
   x = 854,564.30