Finding the Third Proportional to 328,926 and 708,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,926 : 708,607.50 = 708,607.50 : x
2. Step 2: Convert to fraction form
   328,926/708,607.50 = 708,607.50/x
3. Step 3: Cross multiply
   328,926x = 708,607.50 × 708,607.50
4. Step 4: Simplify right side
   328,926x = 502,124,589,056.25
5. Step 5: Solve for x
   x = 502,124,589,056.25/328,926
6. Step 6: Final answer
   x = 1,526,557.92