Finding the Third Proportional to 290,329.50 and 625,152

Step by Step Solution

1. Step 1: Write the proportion equation
   290,329.50 : 625,152 = 625,152 : x
2. Step 2: Convert to fraction form
   290,329.50/625,152 = 625,152/x
3. Step 3: Cross multiply
   290,329.50x = 625,152 × 625,152
4. Step 4: Simplify right side
   290,329.50x = 390,815,023,104
5. Step 5: Solve for x
   x = 390,815,023,104/290,329.50
6. Step 6: Final answer
   x = 1,346,108.55