Finding the Third Proportional to 127,945 and 297,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,945 : 297,434.50 = 297,434.50 : x
2. Step 2: Convert to fraction form
   127,945/297,434.50 = 297,434.50/x
3. Step 3: Cross multiply
   127,945x = 297,434.50 × 297,434.50
4. Step 4: Simplify right side
   127,945x = 88,467,281,790.25
5. Step 5: Solve for x
   x = 88,467,281,790.25/127,945
6. Step 6: Final answer
   x = 691,447.75