Finding the Third Proportional to 724,671 and 1,705,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   724,671 : 1,705,141.50 = 1,705,141.50 : x
2. Step 2: Convert to fraction form
   724,671/1,705,141.50 = 1,705,141.50/x
3. Step 3: Cross multiply
   724,671x = 1,705,141.50 × 1,705,141.50
4. Step 4: Simplify right side
   724,671x = 2,907,507,535,022.25
5. Step 5: Solve for x
   x = 2,907,507,535,022.25/724,671
6. Step 6: Final answer
   x = 4,012,175.92