Finding the Third Proportional to 17,880,955.50 and 38,620,456

Step by Step Solution

1. Step 1: Write the proportion equation
   17,880,955.50 : 38,620,456 = 38,620,456 : x
2. Step 2: Convert to fraction form
   17,880,955.50/38,620,456 = 38,620,456/x
3. Step 3: Cross multiply
   17,880,955.50x = 38,620,456 × 38,620,456
4. Step 4: Simplify right side
   17,880,955.50x = 1,491,539,621,647,936
5. Step 5: Solve for x
   x = 1,491,539,621,647,936/17,880,955.50
6. Step 6: Final answer
   x = 83,414,984.26