Finding the Third Proportional to 91,258,261 and 139,185,930

Step by Step Solution

1. Step 1: Write the proportion equation
   91,258,261 : 139,185,930 = 139,185,930 : x
2. Step 2: Convert to fraction form
   91,258,261/139,185,930 = 139,185,930/x
3. Step 3: Cross multiply
   91,258,261x = 139,185,930 × 139,185,930
4. Step 4: Simplify right side
   91,258,261x = 19,372,723,109,964,900
5. Step 5: Solve for x
   x = 19,372,723,109,964,900/91,258,261
6. Step 6: Final answer
   x = 212,284,596.46