Finding the Third Proportional to 2,499,988.50 and 5,379,360.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,988.50 : 5,379,360.75 = 5,379,360.75 : x
2. Step 2: Convert to fraction form
   2,499,988.50/5,379,360.75 = 5,379,360.75/x
3. Step 3: Cross multiply
   2,499,988.50x = 5,379,360.75 × 5,379,360.75
4. Step 4: Simplify right side
   2,499,988.50x = 28,937,522,078,640.56
5. Step 5: Solve for x
   x = 28,937,522,078,640.56/2,499,988.50
6. Step 6: Final answer
   x = 11,575,062.08