Finding the Third Proportional to 11,803,374 and 18,209,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,803,374 : 18,209,443.50 = 18,209,443.50 : x
2. Step 2: Convert to fraction form
   11,803,374/18,209,443.50 = 18,209,443.50/x
3. Step 3: Cross multiply
   11,803,374x = 18,209,443.50 × 18,209,443.50
4. Step 4: Simplify right side
   11,803,374x = 331,583,832,579,692.25
5. Step 5: Solve for x
   x = 331,583,832,579,692.25/11,803,374
6. Step 6: Final answer
   x = 28,092,292.30