Finding the Third Proportional to 341,779.50 and 743,807.81

Step by Step Solution

1. Step 1: Write the proportion equation
   341,779.50 : 743,807.81 = 743,807.81 : x
2. Step 2: Convert to fraction form
   341,779.50/743,807.81 = 743,807.81/x
3. Step 3: Cross multiply
   341,779.50x = 743,807.81 × 743,807.81
4. Step 4: Simplify right side
   341,779.50x = 553,250,061,936.04
5. Step 5: Solve for x
   x = 553,250,061,936.04/341,779.50
6. Step 6: Final answer
   x = 1,618,733.90