Finding the Third Proportional to 120,508.50 and 262,473

Step by Step Solution

1. Step 1: Write the proportion equation
   120,508.50 : 262,473 = 262,473 : x
2. Step 2: Convert to fraction form
   120,508.50/262,473 = 262,473/x
3. Step 3: Cross multiply
   120,508.50x = 262,473 × 262,473
4. Step 4: Simplify right side
   120,508.50x = 68,892,075,729
5. Step 5: Solve for x
   x = 68,892,075,729/120,508.50
6. Step 6: Final answer
   x = 571,678.14