Finding the Third Proportional to 367,800.75 and 788,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   367,800.75 : 788,089.50 = 788,089.50 : x
2. Step 2: Convert to fraction form
   367,800.75/788,089.50 = 788,089.50/x
3. Step 3: Cross multiply
   367,800.75x = 788,089.50 × 788,089.50
4. Step 4: Simplify right side
   367,800.75x = 621,085,060,010.25
5. Step 5: Solve for x
   x = 621,085,060,010.25/367,800.75
6. Step 6: Final answer
   x = 1,688,645.44