Finding the Third Proportional to 249,439.50 and 443,475

Step by Step Solution

1. Step 1: Write the proportion equation
   249,439.50 : 443,475 = 443,475 : x
2. Step 2: Convert to fraction form
   249,439.50/443,475 = 443,475/x
3. Step 3: Cross multiply
   249,439.50x = 443,475 × 443,475
4. Step 4: Simplify right side
   249,439.50x = 196,670,075,625
5. Step 5: Solve for x
   x = 196,670,075,625/249,439.50
6. Step 6: Final answer
   x = 788,448.00