Finding the Third Proportional to 349,885.50 and 763,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,885.50 : 763,075.50 = 763,075.50 : x
2. Step 2: Convert to fraction form
   349,885.50/763,075.50 = 763,075.50/x
3. Step 3: Cross multiply
   349,885.50x = 763,075.50 × 763,075.50
4. Step 4: Simplify right side
   349,885.50x = 582,284,218,700.25
5. Step 5: Solve for x
   x = 582,284,218,700.25/349,885.50
6. Step 6: Final answer
   x = 1,664,213.63