Finding the Third Proportional to 1,868,603,190 and 4,411,013,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868,603,190 : 4,411,013,992.50 = 4,411,013,992.50 : x
2. Step 2: Convert to fraction form
   1,868,603,190/4,411,013,992.50 = 4,411,013,992.50/x
3. Step 3: Cross multiply
   1,868,603,190x = 4,411,013,992.50 × 4,411,013,992.50
4. Step 4: Simplify right side
   1,868,603,190x = 19,457,044,442,030,788,608
5. Step 5: Solve for x
   x = 19,457,044,442,030,788,608/1,868,603,190
6. Step 6: Final answer
   x = 10,412,614,377.50