Finding the Third Proportional to 1,605,601 and 2,186,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,601 : 2,186,947.50 = 2,186,947.50 : x
2. Step 2: Convert to fraction form
   1,605,601/2,186,947.50 = 2,186,947.50/x
3. Step 3: Cross multiply
   1,605,601x = 2,186,947.50 × 2,186,947.50
4. Step 4: Simplify right side
   1,605,601x = 4,782,739,367,756.25
5. Step 5: Solve for x
   x = 4,782,739,367,756.25/1,605,601
6. Step 6: Final answer
   x = 2,978,784.50