Finding the Third Proportional to 13,153,998,665.25 and 30,693,724,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,153,998,665.25 : 30,693,724,213.50 = 30,693,724,213.50 : x
2. Step 2: Convert to fraction form
   13,153,998,665.25/30,693,724,213.50 = 30,693,724,213.50/x
3. Step 3: Cross multiply
   13,153,998,665.25x = 30,693,724,213.50 × 30,693,724,213.50
4. Step 4: Simplify right side
   13,153,998,665.25x = 942,104,706,094,396,211,200
5. Step 5: Solve for x
   x = 942,104,706,094,396,211,200/13,153,998,665.25
6. Step 6: Final answer
   x = 71,621,164,793.28