Finding the Third Proportional to 1,238,418 and 1,834,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,418 : 1,834,663.50 = 1,834,663.50 : x
2. Step 2: Convert to fraction form
   1,238,418/1,834,663.50 = 1,834,663.50/x
3. Step 3: Cross multiply
   1,238,418x = 1,834,663.50 × 1,834,663.50
4. Step 4: Simplify right side
   1,238,418x = 3,365,990,158,232.25
5. Step 5: Solve for x
   x = 3,365,990,158,232.25/1,238,418
6. Step 6: Final answer
   x = 2,717,975.80