Finding the Third Proportional to 123,985.50 and 268,572

Step by Step Solution

1. Step 1: Write the proportion equation
   123,985.50 : 268,572 = 268,572 : x
2. Step 2: Convert to fraction form
   123,985.50/268,572 = 268,572/x
3. Step 3: Cross multiply
   123,985.50x = 268,572 × 268,572
4. Step 4: Simplify right side
   123,985.50x = 72,130,919,184
5. Step 5: Solve for x
   x = 72,130,919,184/123,985.50
6. Step 6: Final answer
   x = 581,768.99