Finding the Third Proportional to 249,701.63 and 550,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,701.63 : 550,300.50 = 550,300.50 : x
2. Step 2: Convert to fraction form
   249,701.63/550,300.50 = 550,300.50/x
3. Step 3: Cross multiply
   249,701.63x = 550,300.50 × 550,300.50
4. Step 4: Simplify right side
   249,701.63x = 302,830,640,300.25
5. Step 5: Solve for x
   x = 302,830,640,300.25/249,701.63
6. Step 6: Final answer
   x = 1,212,770.00