Finding the Third Proportional to 699,789 and 1,114,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   699,789 : 1,114,042.50 = 1,114,042.50 : x
2. Step 2: Convert to fraction form
   699,789/1,114,042.50 = 1,114,042.50/x
3. Step 3: Cross multiply
   699,789x = 1,114,042.50 × 1,114,042.50
4. Step 4: Simplify right side
   699,789x = 1,241,090,691,806.25
5. Step 5: Solve for x
   x = 1,241,090,691,806.25/699,789
6. Step 6: Final answer
   x = 1,773,521.29