Finding the Third Proportional to 207,985 and 297,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,985 : 297,429.50 = 297,429.50 : x
2. Step 2: Convert to fraction form
   207,985/297,429.50 = 297,429.50/x
3. Step 3: Cross multiply
   207,985x = 297,429.50 × 297,429.50
4. Step 4: Simplify right side
   207,985x = 88,464,307,470.25
5. Step 5: Solve for x
   x = 88,464,307,470.25/207,985
6. Step 6: Final answer
   x = 425,339.84