Finding the Third Proportional to 175,062,472 and 405,238,468

Step by Step Solution

1. Step 1: Write the proportion equation
   175,062,472 : 405,238,468 = 405,238,468 : x
2. Step 2: Convert to fraction form
   175,062,472/405,238,468 = 405,238,468/x
3. Step 3: Cross multiply
   175,062,472x = 405,238,468 × 405,238,468
4. Step 4: Simplify right side
   175,062,472x = 164,218,215,946,987,008
5. Step 5: Solve for x
   x = 164,218,215,946,987,008/175,062,472
6. Step 6: Final answer
   x = 938,054,935.88