Finding the Third Proportional to 139,923,748 and 307,395,272

Step by Step Solution

1. Step 1: Write the proportion equation
   139,923,748 : 307,395,272 = 307,395,272 : x
2. Step 2: Convert to fraction form
   139,923,748/307,395,272 = 307,395,272/x
3. Step 3: Cross multiply
   139,923,748x = 307,395,272 × 307,395,272
4. Step 4: Simplify right side
   139,923,748x = 94,491,853,247,953,984
5. Step 5: Solve for x
   x = 94,491,853,247,953,984/139,923,748
6. Step 6: Final answer
   x = 675,309,621.12