Finding the Third Proportional to 345,196 and 753,147

Step by Step Solution

1. Step 1: Write the proportion equation
   345,196 : 753,147 = 753,147 : x
2. Step 2: Convert to fraction form
   345,196/753,147 = 753,147/x
3. Step 3: Cross multiply
   345,196x = 753,147 × 753,147
4. Step 4: Simplify right side
   345,196x = 567,230,403,609
5. Step 5: Solve for x
   x = 567,230,403,609/345,196
6. Step 6: Final answer
   x = 1,643,212.56