Finding the Third Proportional to 368,475,867 and 787,970,061

Step by Step Solution

1. Step 1: Write the proportion equation
   368,475,867 : 787,970,061 = 787,970,061 : x
2. Step 2: Convert to fraction form
   368,475,867/787,970,061 = 787,970,061/x
3. Step 3: Cross multiply
   368,475,867x = 787,970,061 × 787,970,061
4. Step 4: Simplify right side
   368,475,867x = 620,896,817,032,343,680
5. Step 5: Solve for x
   x = 620,896,817,032,343,680/368,475,867
6. Step 6: Final answer
   x = 1,685,040,657.04