Finding the Third Proportional to 870,120,892.41 and 1,380,065,722.17

Step by Step Solution

1. Step 1: Write the proportion equation
   870,120,892.41 : 1,380,065,722.17 = 1,380,065,722.17 : x
2. Step 2: Convert to fraction form
   870,120,892.41/1,380,065,722.17 = 1,380,065,722.17/x
3. Step 3: Cross multiply
   870,120,892.41x = 1,380,065,722.17 × 1,380,065,722.17
4. Step 4: Simplify right side
   870,120,892.41x = 1,904,581,397,513,848,064
5. Step 5: Solve for x
   x = 1,904,581,397,513,848,064/870,120,892.41
6. Step 6: Final answer
   x = 2,188,869,861.80