Finding the Third Proportional to 340,140 and 744,792

Step by Step Solution

1. Step 1: Write the proportion equation
   340,140 : 744,792 = 744,792 : x
2. Step 2: Convert to fraction form
   340,140/744,792 = 744,792/x
3. Step 3: Cross multiply
   340,140x = 744,792 × 744,792
4. Step 4: Simplify right side
   340,140x = 554,715,123,264
5. Step 5: Solve for x
   x = 554,715,123,264/340,140
6. Step 6: Final answer
   x = 1,630,843.54