Finding the Third Proportional to 349,677 and 531,349.88

Step by Step Solution

1. Step 1: Write the proportion equation
   349,677 : 531,349.88 = 531,349.88 : x
2. Step 2: Convert to fraction form
   349,677/531,349.88 = 531,349.88/x
3. Step 3: Cross multiply
   349,677x = 531,349.88 × 531,349.88
4. Step 4: Simplify right side
   349,677x = 282,332,689,662.52
5. Step 5: Solve for x
   x = 282,332,689,662.52/349,677
6. Step 6: Final answer
   x = 807,409.95