Finding the Third Proportional to 19,780,560 and 41,076,468

Step by Step Solution

1. Step 1: Write the proportion equation
   19,780,560 : 41,076,468 = 41,076,468 : x
2. Step 2: Convert to fraction form
   19,780,560/41,076,468 = 41,076,468/x
3. Step 3: Cross multiply
   19,780,560x = 41,076,468 × 41,076,468
4. Step 4: Simplify right side
   19,780,560x = 1,687,276,223,355,024
5. Step 5: Solve for x
   x = 1,687,276,223,355,024/19,780,560
6. Step 6: Final answer
   x = 85,299,719.69