Finding the Third Proportional to 65,215,496 and 140,645,410

Step by Step Solution

1. Step 1: Write the proportion equation
   65,215,496 : 140,645,410 = 140,645,410 : x
2. Step 2: Convert to fraction form
   65,215,496/140,645,410 = 140,645,410/x
3. Step 3: Cross multiply
   65,215,496x = 140,645,410 × 140,645,410
4. Step 4: Simplify right side
   65,215,496x = 19,781,131,354,068,100
5. Step 5: Solve for x
   x = 19,781,131,354,068,100/65,215,496
6. Step 6: Final answer
   x = 303,319,495.63