Finding the Third Proportional to 65,455,560 and 142,403,346

Step by Step Solution

1. Step 1: Write the proportion equation
   65,455,560 : 142,403,346 = 142,403,346 : x
2. Step 2: Convert to fraction form
   65,455,560/142,403,346 = 142,403,346/x
3. Step 3: Cross multiply
   65,455,560x = 142,403,346 × 142,403,346
4. Step 4: Simplify right side
   65,455,560x = 20,278,712,951,995,716
5. Step 5: Solve for x
   x = 20,278,712,951,995,716/65,455,560
6. Step 6: Final answer
   x = 309,808,868.06