Finding the Third Proportional to 117,747,820,619.25 and 256,806,757,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,747,820,619.25 : 256,806,757,573.50 = 256,806,757,573.50 : x
2. Step 2: Convert to fraction form
   117,747,820,619.25/256,806,757,573.50 = 256,806,757,573.50/x
3. Step 3: Cross multiply
   117,747,820,619.25x = 256,806,757,573.50 × 256,806,757,573.50
4. Step 4: Simplify right side
   117,747,820,619.25x = 65,949,710,735,414,401,171,456
5. Step 5: Solve for x
   x = 65,949,710,735,414,401,171,456/117,747,820,619.25
6. Step 6: Final answer
   x = 560,092,835,592.00