Finding the Third Proportional to 7,663,210 and 12,771,483

Step by Step Solution

1. Step 1: Write the proportion equation
   7,663,210 : 12,771,483 = 12,771,483 : x
2. Step 2: Convert to fraction form
   7,663,210/12,771,483 = 12,771,483/x
3. Step 3: Cross multiply
   7,663,210x = 12,771,483 × 12,771,483
4. Step 4: Simplify right side
   7,663,210x = 163,110,778,019,289
5. Step 5: Solve for x
   x = 163,110,778,019,289/7,663,210
6. Step 6: Final answer
   x = 21,284,915.59