Finding the Third Proportional to 261,549 and 554,482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   261,549 : 554,482.50 = 554,482.50 : x
2. Step 2: Convert to fraction form
   261,549/554,482.50 = 554,482.50/x
3. Step 3: Cross multiply
   261,549x = 554,482.50 × 554,482.50
4. Step 4: Simplify right side
   261,549x = 307,450,842,806.25
5. Step 5: Solve for x
   x = 307,450,842,806.25/261,549
6. Step 6: Final answer
   x = 1,175,499.97