Finding the Third Proportional to 292,543,436.25 and 609,300,605.25

Step by Step Solution

1. Step 1: Write the proportion equation
   292,543,436.25 : 609,300,605.25 = 609,300,605.25 : x
2. Step 2: Convert to fraction form
   292,543,436.25/609,300,605.25 = 609,300,605.25/x
3. Step 3: Cross multiply
   292,543,436.25x = 609,300,605.25 × 609,300,605.25
4. Step 4: Simplify right side
   292,543,436.25x = 371,247,227,558,016,320
5. Step 5: Solve for x
   x = 371,247,227,558,016,320/292,543,436.25
6. Step 6: Final answer
   x = 1,269,032,839.42