Finding the Third Proportional to 139,999,648 and 219,118,112

Step by Step Solution

1. Step 1: Write the proportion equation
   139,999,648 : 219,118,112 = 219,118,112 : x
2. Step 2: Convert to fraction form
   139,999,648/219,118,112 = 219,118,112/x
3. Step 3: Cross multiply
   139,999,648x = 219,118,112 × 219,118,112
4. Step 4: Simplify right side
   139,999,648x = 48,012,747,006,444,544
5. Step 5: Solve for x
   x = 48,012,747,006,444,544/139,999,648
6. Step 6: Final answer
   x = 342,949,055.18