Finding the Third Proportional to 31,612,525,164 and 68,734,820,655

Step by Step Solution

1. Step 1: Write the proportion equation
   31,612,525,164 : 68,734,820,655 = 68,734,820,655 : x
2. Step 2: Convert to fraction form
   31,612,525,164/68,734,820,655 = 68,734,820,655/x
3. Step 3: Cross multiply
   31,612,525,164x = 68,734,820,655 × 68,734,820,655
4. Step 4: Simplify right side
   31,612,525,164x = 4,724,475,570,475,015,077,888
5. Step 5: Solve for x
   x = 4,724,475,570,475,015,077,888/31,612,525,164
6. Step 6: Final answer
   x = 149,449,483,898.09