Finding the Third Proportional to 116,521,821 and 173,985,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,521,821 : 173,985,124.50 = 173,985,124.50 : x
2. Step 2: Convert to fraction form
   116,521,821/173,985,124.50 = 173,985,124.50/x
3. Step 3: Cross multiply
   116,521,821x = 173,985,124.50 × 173,985,124.50
4. Step 4: Simplify right side
   116,521,821x = 30,270,823,547,280,500
5. Step 5: Solve for x
   x = 30,270,823,547,280,500/116,521,821
6. Step 6: Final answer
   x = 259,786,735.97