Finding the Third Proportional to 99,470,640 and 214,057,830

Step by Step Solution

1. Step 1: Write the proportion equation
   99,470,640 : 214,057,830 = 214,057,830 : x
2. Step 2: Convert to fraction form
   99,470,640/214,057,830 = 214,057,830/x
3. Step 3: Cross multiply
   99,470,640x = 214,057,830 × 214,057,830
4. Step 4: Simplify right side
   99,470,640x = 45,820,754,584,308,896
5. Step 5: Solve for x
   x = 45,820,754,584,308,896/99,470,640
6. Step 6: Final answer
   x = 460,646,021.62