Finding the Third Proportional to 1,091,947.50 and 1,689,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,947.50 : 1,689,025.50 = 1,689,025.50 : x
2. Step 2: Convert to fraction form
   1,091,947.50/1,689,025.50 = 1,689,025.50/x
3. Step 3: Cross multiply
   1,091,947.50x = 1,689,025.50 × 1,689,025.50
4. Step 4: Simplify right side
   1,091,947.50x = 2,852,807,139,650.25
5. Step 5: Solve for x
   x = 2,852,807,139,650.25/1,091,947.50
6. Step 6: Final answer
   x = 2,612,586.36