Finding the Third Proportional to 354,729 and 788,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,729 : 788,189.50 = 788,189.50 : x
2. Step 2: Convert to fraction form
   354,729/788,189.50 = 788,189.50/x
3. Step 3: Cross multiply
   354,729x = 788,189.50 × 788,189.50
4. Step 4: Simplify right side
   354,729x = 621,242,687,910.25
5. Step 5: Solve for x
   x = 621,242,687,910.25/354,729
6. Step 6: Final answer
   x = 1,751,316.32