Finding the Third Proportional to 249,790.50 and 380,943

Step by Step Solution

1. Step 1: Write the proportion equation
   249,790.50 : 380,943 = 380,943 : x
2. Step 2: Convert to fraction form
   249,790.50/380,943 = 380,943/x
3. Step 3: Cross multiply
   249,790.50x = 380,943 × 380,943
4. Step 4: Simplify right side
   249,790.50x = 145,117,569,249
5. Step 5: Solve for x
   x = 145,117,569,249/249,790.50
6. Step 6: Final answer
   x = 580,957.12