Finding the Third Proportional to 339,567 and 707,038.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,567 : 707,038.50 = 707,038.50 : x
2. Step 2: Convert to fraction form
   339,567/707,038.50 = 707,038.50/x
3. Step 3: Cross multiply
   339,567x = 707,038.50 × 707,038.50
4. Step 4: Simplify right side
   339,567x = 499,903,440,482.25
5. Step 5: Solve for x
   x = 499,903,440,482.25/339,567
6. Step 6: Final answer
   x = 1,472,179.10