Finding the Third Proportional to 551,157,526 and 816,404,548

Step by Step Solution

1. Step 1: Write the proportion equation
   551,157,526 : 816,404,548 = 816,404,548 : x
2. Step 2: Convert to fraction form
   551,157,526/816,404,548 = 816,404,548/x
3. Step 3: Cross multiply
   551,157,526x = 816,404,548 × 816,404,548
4. Step 4: Simplify right side
   551,157,526x = 666,516,385,995,084,288
5. Step 5: Solve for x
   x = 666,516,385,995,084,288/551,157,526
6. Step 6: Final answer
   x = 1,209,302,884.48