Finding the Third Proportional to 415,926,667.13 and 878,262,157.69

Step by Step Solution

1. Step 1: Write the proportion equation
   415,926,667.13 : 878,262,157.69 = 878,262,157.69 : x
2. Step 2: Convert to fraction form
   415,926,667.13/878,262,157.69 = 878,262,157.69/x
3. Step 3: Cross multiply
   415,926,667.13x = 878,262,157.69 × 878,262,157.69
4. Step 4: Simplify right side
   415,926,667.13x = 771,344,417,625,903,104
5. Step 5: Solve for x
   x = 771,344,417,625,903,104/415,926,667.13
6. Step 6: Final answer
   x = 1,854,520,228.19