Finding the Third Proportional to 64,719,494 and 139,044,334

Step by Step Solution

1. Step 1: Write the proportion equation
   64,719,494 : 139,044,334 = 139,044,334 : x
2. Step 2: Convert to fraction form
   64,719,494/139,044,334 = 139,044,334/x
3. Step 3: Cross multiply
   64,719,494x = 139,044,334 × 139,044,334
4. Step 4: Simplify right side
   64,719,494x = 19,333,326,817,503,556
5. Step 5: Solve for x
   x = 19,333,326,817,503,556/64,719,494
6. Step 6: Final answer
   x = 298,724,937.77