Finding the Third Proportional to 67,588,655 and 138,760,388

Step by Step Solution

1. Step 1: Write the proportion equation
   67,588,655 : 138,760,388 = 138,760,388 : x
2. Step 2: Convert to fraction form
   67,588,655/138,760,388 = 138,760,388/x
3. Step 3: Cross multiply
   67,588,655x = 138,760,388 × 138,760,388
4. Step 4: Simplify right side
   67,588,655x = 19,254,445,277,910,544
5. Step 5: Solve for x
   x = 19,254,445,277,910,544/67,588,655
6. Step 6: Final answer
   x = 284,876,881.75