Finding the Third Proportional to 538,807,456 and 788,055,786

Step by Step Solution

1. Step 1: Write the proportion equation
   538,807,456 : 788,055,786 = 788,055,786 : x
2. Step 2: Convert to fraction form
   538,807,456/788,055,786 = 788,055,786/x
3. Step 3: Cross multiply
   538,807,456x = 788,055,786 × 788,055,786
4. Step 4: Simplify right side
   538,807,456x = 621,031,921,848,077,824
5. Step 5: Solve for x
   x = 621,031,921,848,077,824/538,807,456
6. Step 6: Final answer
   x = 1,152,604,543.48