Finding the Third Proportional to 56,481,554 and 123,321,028

Step by Step Solution

1. Step 1: Write the proportion equation
   56,481,554 : 123,321,028 = 123,321,028 : x
2. Step 2: Convert to fraction form
   56,481,554/123,321,028 = 123,321,028/x
3. Step 3: Cross multiply
   56,481,554x = 123,321,028 × 123,321,028
4. Step 4: Simplify right side
   56,481,554x = 15,208,075,946,976,784
5. Step 5: Solve for x
   x = 15,208,075,946,976,784/56,481,554
6. Step 6: Final answer
   x = 269,257,392.37