Finding the Third Proportional to 63,991,836 and 141,820,578

Step by Step Solution

1. Step 1: Write the proportion equation
   63,991,836 : 141,820,578 = 141,820,578 : x
2. Step 2: Convert to fraction form
   63,991,836/141,820,578 = 141,820,578/x
3. Step 3: Cross multiply
   63,991,836x = 141,820,578 × 141,820,578
4. Step 4: Simplify right side
   63,991,836x = 20,113,076,344,254,084
5. Step 5: Solve for x
   x = 20,113,076,344,254,084/63,991,836
6. Step 6: Final answer
   x = 314,306,911.65