Finding the Third Proportional to 39,782,436 and 86,960,412

Step by Step Solution

1. Step 1: Write the proportion equation
   39,782,436 : 86,960,412 = 86,960,412 : x
2. Step 2: Convert to fraction form
   39,782,436/86,960,412 = 86,960,412/x
3. Step 3: Cross multiply
   39,782,436x = 86,960,412 × 86,960,412
4. Step 4: Simplify right side
   39,782,436x = 7,562,113,255,209,744
5. Step 5: Solve for x
   x = 7,562,113,255,209,744/39,782,436
6. Step 6: Final answer
   x = 190,086,732.12