Finding the Third Proportional to 569,066,634 and 853,599,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   569,066,634 : 853,599,892.50 = 853,599,892.50 : x
2. Step 2: Convert to fraction form
   569,066,634/853,599,892.50 = 853,599,892.50/x
3. Step 3: Cross multiply
   569,066,634x = 853,599,892.50 × 853,599,892.50
4. Step 4: Simplify right side
   569,066,634x = 728,632,776,476,011,520
5. Step 5: Solve for x
   x = 728,632,776,476,011,520/569,066,634
6. Step 6: Final answer
   x = 1,280,399,751.00