Finding the Third Proportional to 290,334 and 625,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   290,334 : 625,162.50 = 625,162.50 : x
2. Step 2: Convert to fraction form
   290,334/625,162.50 = 625,162.50/x
3. Step 3: Cross multiply
   290,334x = 625,162.50 × 625,162.50
4. Step 4: Simplify right side
   290,334x = 390,828,151,406.25
5. Step 5: Solve for x
   x = 390,828,151,406.25/290,334
6. Step 6: Final answer
   x = 1,346,132.91