Finding the Third Proportional to 646,870,887 and 1,056,170,137.50

Step by Step Solution

1. Step 1: Write the proportion equation
   646,870,887 : 1,056,170,137.50 = 1,056,170,137.50 : x
2. Step 2: Convert to fraction form
   646,870,887/1,056,170,137.50 = 1,056,170,137.50/x
3. Step 3: Cross multiply
   646,870,887x = 1,056,170,137.50 × 1,056,170,137.50
4. Step 4: Simplify right side
   646,870,887x = 1,115,495,359,346,768,896
5. Step 5: Solve for x
   x = 1,115,495,359,346,768,896/646,870,887
6. Step 6: Final answer
   x = 1,724,448,234.98