Finding the Third Proportional to 11,111,799 and 16,697,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111,799 : 16,697,281.50 = 16,697,281.50 : x
2. Step 2: Convert to fraction form
   11,111,799/16,697,281.50 = 16,697,281.50/x
3. Step 3: Cross multiply
   11,111,799x = 16,697,281.50 × 16,697,281.50
4. Step 4: Simplify right side
   11,111,799x = 278,799,209,490,242.25
5. Step 5: Solve for x
   x = 278,799,209,490,242.25/11,111,799
6. Step 6: Final answer
   x = 25,090,375.51