Finding the Third Proportional to 550,426.50 and 910,972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,426.50 : 910,972.50 = 910,972.50 : x
2. Step 2: Convert to fraction form
   550,426.50/910,972.50 = 910,972.50/x
3. Step 3: Cross multiply
   550,426.50x = 910,972.50 × 910,972.50
4. Step 4: Simplify right side
   550,426.50x = 829,870,895,756.25
5. Step 5: Solve for x
   x = 829,870,895,756.25/550,426.50
6. Step 6: Final answer
   x = 1,507,687.03