Finding the Third Proportional to 345,194 and 753,144

Step by Step Solution

1. Step 1: Write the proportion equation
   345,194 : 753,144 = 753,144 : x
2. Step 2: Convert to fraction form
   345,194/753,144 = 753,144/x
3. Step 3: Cross multiply
   345,194x = 753,144 × 753,144
4. Step 4: Simplify right side
   345,194x = 567,225,884,736
5. Step 5: Solve for x
   x = 567,225,884,736/345,194
6. Step 6: Final answer
   x = 1,643,208.99