Finding the Third Proportional to 340,185 and 744,870

Step by Step Solution

1. Step 1: Write the proportion equation
   340,185 : 744,870 = 744,870 : x
2. Step 2: Convert to fraction form
   340,185/744,870 = 744,870/x
3. Step 3: Cross multiply
   340,185x = 744,870 × 744,870
4. Step 4: Simplify right side
   340,185x = 554,831,316,900
5. Step 5: Solve for x
   x = 554,831,316,900/340,185
6. Step 6: Final answer
   x = 1,630,969.38