Finding the Third Proportional to 139,003,640 and 188,571,036

Step by Step Solution

1. Step 1: Write the proportion equation
   139,003,640 : 188,571,036 = 188,571,036 : x
2. Step 2: Convert to fraction form
   139,003,640/188,571,036 = 188,571,036/x
3. Step 3: Cross multiply
   139,003,640x = 188,571,036 × 188,571,036
4. Step 4: Simplify right side
   139,003,640x = 35,559,035,618,113,296
5. Step 5: Solve for x
   x = 35,559,035,618,113,296/139,003,640
6. Step 6: Final answer
   x = 255,813,701.12