Finding the Third Proportional to 646,870,878.56 and 1,056,170,124

Step by Step Solution

1. Step 1: Write the proportion equation
   646,870,878.56 : 1,056,170,124 = 1,056,170,124 : x
2. Step 2: Convert to fraction form
   646,870,878.56/1,056,170,124 = 1,056,170,124/x
3. Step 3: Cross multiply
   646,870,878.56x = 1,056,170,124 × 1,056,170,124
4. Step 4: Simplify right side
   646,870,878.56x = 1,115,495,330,830,175,360
5. Step 5: Solve for x
   x = 1,115,495,330,830,175,360/646,870,878.56
6. Step 6: Final answer
   x = 1,724,448,213.39