Finding the Third Proportional to 99,134,942 and 215,907,292

Step by Step Solution

1. Step 1: Write the proportion equation
   99,134,942 : 215,907,292 = 215,907,292 : x
2. Step 2: Convert to fraction form
   99,134,942/215,907,292 = 215,907,292/x
3. Step 3: Cross multiply
   99,134,942x = 215,907,292 × 215,907,292
4. Step 4: Simplify right side
   99,134,942x = 46,615,958,738,773,264
5. Step 5: Solve for x
   x = 46,615,958,738,773,264/99,134,942
6. Step 6: Final answer
   x = 470,227,326.49