Finding the Third Proportional to 776,349 and 1,689,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   776,349 : 1,689,385.50 = 1,689,385.50 : x
2. Step 2: Convert to fraction form
   776,349/1,689,385.50 = 1,689,385.50/x
3. Step 3: Cross multiply
   776,349x = 1,689,385.50 × 1,689,385.50
4. Step 4: Simplify right side
   776,349x = 2,854,023,367,610.25
5. Step 5: Solve for x
   x = 2,854,023,367,610.25/776,349
6. Step 6: Final answer
   x = 3,676,211.82