Finding the Third Proportional to 616,574,914.50 and 890,844,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   616,574,914.50 : 890,844,241.50 = 890,844,241.50 : x
2. Step 2: Convert to fraction form
   616,574,914.50/890,844,241.50 = 890,844,241.50/x
3. Step 3: Cross multiply
   616,574,914.50x = 890,844,241.50 × 890,844,241.50
4. Step 4: Simplify right side
   616,574,914.50x = 793,603,462,613,710,336
5. Step 5: Solve for x
   x = 793,603,462,613,710,336/616,574,914.50
6. Step 6: Final answer
   x = 1,287,116,040.49