Finding the Third Proportional to 76,720,029 and 164,322,570

Step by Step Solution

1. Step 1: Write the proportion equation
   76,720,029 : 164,322,570 = 164,322,570 : x
2. Step 2: Convert to fraction form
   76,720,029/164,322,570 = 164,322,570/x
3. Step 3: Cross multiply
   76,720,029x = 164,322,570 × 164,322,570
4. Step 4: Simplify right side
   76,720,029x = 27,001,907,011,404,900
5. Step 5: Solve for x
   x = 27,001,907,011,404,900/76,720,029
6. Step 6: Final answer
   x = 351,953,816.54