Finding the Third Proportional to 64,719,490 and 139,044,326

Step by Step Solution

1. Step 1: Write the proportion equation
   64,719,490 : 139,044,326 = 139,044,326 : x
2. Step 2: Convert to fraction form
   64,719,490/139,044,326 = 139,044,326/x
3. Step 3: Cross multiply
   64,719,490x = 139,044,326 × 139,044,326
4. Step 4: Simplify right side
   64,719,490x = 19,333,324,592,794,276
5. Step 5: Solve for x
   x = 19,333,324,592,794,276/64,719,490
6. Step 6: Final answer
   x = 298,724,921.86