Finding the Third Proportional to 16,409,686.50 and 35,968,401

Step by Step Solution

1. Step 1: Write the proportion equation
   16,409,686.50 : 35,968,401 = 35,968,401 : x
2. Step 2: Convert to fraction form
   16,409,686.50/35,968,401 = 35,968,401/x
3. Step 3: Cross multiply
   16,409,686.50x = 35,968,401 × 35,968,401
4. Step 4: Simplify right side
   16,409,686.50x = 1,293,725,870,496,801
5. Step 5: Solve for x
   x = 1,293,725,870,496,801/16,409,686.50
6. Step 6: Final answer
   x = 78,839,158.23