Finding the Third Proportional to 411,060 and 614,910

Step by Step Solution

1. Step 1: Write the proportion equation
   411,060 : 614,910 = 614,910 : x
2. Step 2: Convert to fraction form
   411,060/614,910 = 614,910/x
3. Step 3: Cross multiply
   411,060x = 614,910 × 614,910
4. Step 4: Simplify right side
   411,060x = 378,114,308,100
5. Step 5: Solve for x
   x = 378,114,308,100/411,060
6. Step 6: Final answer
   x = 919,851.87