Finding the Third Proportional to 139,793,052 and 218,816,106

Step by Step Solution

1. Step 1: Write the proportion equation
   139,793,052 : 218,816,106 = 218,816,106 : x
2. Step 2: Convert to fraction form
   139,793,052/218,816,106 = 218,816,106/x
3. Step 3: Cross multiply
   139,793,052x = 218,816,106 × 218,816,106
4. Step 4: Simplify right side
   139,793,052x = 47,880,488,245,003,232
5. Step 5: Solve for x
   x = 47,880,488,245,003,232/139,793,052
6. Step 6: Final answer
   x = 342,509,785.43