Finding the Third Proportional to 492,667,393.50 and 688,778,012.25

Step by Step Solution

1. Step 1: Write the proportion equation
   492,667,393.50 : 688,778,012.25 = 688,778,012.25 : x
2. Step 2: Convert to fraction form
   492,667,393.50/688,778,012.25 = 688,778,012.25/x
3. Step 3: Cross multiply
   492,667,393.50x = 688,778,012.25 × 688,778,012.25
4. Step 4: Simplify right side
   492,667,393.50x = 474,415,150,159,061,120
5. Step 5: Solve for x
   x = 474,415,150,159,061,120/492,667,393.50
6. Step 6: Final answer
   x = 962,952,199.43