Finding the Third Proportional to 646,870,889 and 1,056,170,141

Step by Step Solution

1. Step 1: Write the proportion equation
   646,870,889 : 1,056,170,141 = 1,056,170,141 : x
2. Step 2: Convert to fraction form
   646,870,889/1,056,170,141 = 1,056,170,141/x
3. Step 3: Cross multiply
   646,870,889x = 1,056,170,141 × 1,056,170,141
4. Step 4: Simplify right side
   646,870,889x = 1,115,495,366,739,959,936
5. Step 5: Solve for x
   x = 1,115,495,366,739,959,936/646,870,889
6. Step 6: Final answer
   x = 1,724,448,241.08