Finding the Third Proportional to 270,354,978 and 555,042,156

Step by Step Solution

1. Step 1: Write the proportion equation
   270,354,978 : 555,042,156 = 555,042,156 : x
2. Step 2: Convert to fraction form
   270,354,978/555,042,156 = 555,042,156/x
3. Step 3: Cross multiply
   270,354,978x = 555,042,156 × 555,042,156
4. Step 4: Simplify right side
   270,354,978x = 308,071,794,937,128,320
5. Step 5: Solve for x
   x = 308,071,794,937,128,320/270,354,978
6. Step 6: Final answer
   x = 1,139,508,498.11