Finding the Third Proportional to 402,534.56 and 853,061.63

Step by Step Solution

1. Step 1: Write the proportion equation
   402,534.56 : 853,061.63 = 853,061.63 : x
2. Step 2: Convert to fraction form
   402,534.56/853,061.63 = 853,061.63/x
3. Step 3: Cross multiply
   402,534.56x = 853,061.63 × 853,061.63
4. Step 4: Simplify right side
   402,534.56x = 727,714,136,047.64
5. Step 5: Solve for x
   x = 727,714,136,047.64/402,534.56
6. Step 6: Final answer
   x = 1,807,830.19