Finding the Third Proportional to 348,749 and 493,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,749 : 493,615.50 = 493,615.50 : x
2. Step 2: Convert to fraction form
   348,749/493,615.50 = 493,615.50/x
3. Step 3: Cross multiply
   348,749x = 493,615.50 × 493,615.50
4. Step 4: Simplify right side
   348,749x = 243,656,261,840.25
5. Step 5: Solve for x
   x = 243,656,261,840.25/348,749
6. Step 6: Final answer
   x = 698,657.95