Finding the Third Proportional to 385,672.50 and 830,613

Step by Step Solution

1. Step 1: Write the proportion equation
   385,672.50 : 830,613 = 830,613 : x
2. Step 2: Convert to fraction form
   385,672.50/830,613 = 830,613/x
3. Step 3: Cross multiply
   385,672.50x = 830,613 × 830,613
4. Step 4: Simplify right side
   385,672.50x = 689,917,955,769
5. Step 5: Solve for x
   x = 689,917,955,769/385,672.50
6. Step 6: Final answer
   x = 1,788,869.98