Finding the Third Proportional to 646,855,081.50 and 1,407,045,861.75

Step by Step Solution

1. Step 1: Write the proportion equation
   646,855,081.50 : 1,407,045,861.75 = 1,407,045,861.75 : x
2. Step 2: Convert to fraction form
   646,855,081.50/1,407,045,861.75 = 1,407,045,861.75/x
3. Step 3: Cross multiply
   646,855,081.50x = 1,407,045,861.75 × 1,407,045,861.75
4. Step 4: Simplify right side
   646,855,081.50x = 1,979,778,057,067,800,064
5. Step 5: Solve for x
   x = 1,979,778,057,067,800,064/646,855,081.50
6. Step 6: Final answer
   x = 3,060,620,707.31