Finding the Third Proportional to 349,803 and 773,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,803 : 773,113.50 = 773,113.50 : x
2. Step 2: Convert to fraction form
   349,803/773,113.50 = 773,113.50/x
3. Step 3: Cross multiply
   349,803x = 773,113.50 × 773,113.50
4. Step 4: Simplify right side
   349,803x = 597,704,483,882.25
5. Step 5: Solve for x
   x = 597,704,483,882.25/349,803
6. Step 6: Final answer
   x = 1,708,688.84