Finding the Third Proportional to 642,499.50 and 1,522,116

Step by Step Solution

1. Step 1: Write the proportion equation
   642,499.50 : 1,522,116 = 1,522,116 : x
2. Step 2: Convert to fraction form
   642,499.50/1,522,116 = 1,522,116/x
3. Step 3: Cross multiply
   642,499.50x = 1,522,116 × 1,522,116
4. Step 4: Simplify right side
   642,499.50x = 2,316,837,117,456
5. Step 5: Solve for x
   x = 2,316,837,117,456/642,499.50
6. Step 6: Final answer
   x = 3,605,974.97