Finding the Third Proportional to 347,116.50 and 554,301.50

Step by Step Solution

1. Step 1: Write the proportion equation
   347,116.50 : 554,301.50 = 554,301.50 : x
2. Step 2: Convert to fraction form
   347,116.50/554,301.50 = 554,301.50/x
3. Step 3: Cross multiply
   347,116.50x = 554,301.50 × 554,301.50
4. Step 4: Simplify right side
   347,116.50x = 307,250,152,902.25
5. Step 5: Solve for x
   x = 307,250,152,902.25/347,116.50
6. Step 6: Final answer
   x = 885,149.95