Finding the Third Proportional to 78,252,336 and 171,621,200

Step by Step Solution

1. Step 1: Write the proportion equation
   78,252,336 : 171,621,200 = 171,621,200 : x
2. Step 2: Convert to fraction form
   78,252,336/171,621,200 = 171,621,200/x
3. Step 3: Cross multiply
   78,252,336x = 171,621,200 × 171,621,200
4. Step 4: Simplify right side
   78,252,336x = 29,453,836,289,440,000
5. Step 5: Solve for x
   x = 29,453,836,289,440,000/78,252,336
6. Step 6: Final answer
   x = 376,395,616.99