Finding the Third Proportional to 354,456 and 529,368.75

Step by Step Solution

1. Step 1: Write the proportion equation
   354,456 : 529,368.75 = 529,368.75 : x
2. Step 2: Convert to fraction form
   354,456/529,368.75 = 529,368.75/x
3. Step 3: Cross multiply
   354,456x = 529,368.75 × 529,368.75
4. Step 4: Simplify right side
   354,456x = 280,231,273,476.56
5. Step 5: Solve for x
   x = 280,231,273,476.56/354,456
6. Step 6: Final answer
   x = 790,595.37