Finding the Third Proportional to 1,427,421 and 2,101,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,421 : 2,101,699.50 = 2,101,699.50 : x
2. Step 2: Convert to fraction form
   1,427,421/2,101,699.50 = 2,101,699.50/x
3. Step 3: Cross multiply
   1,427,421x = 2,101,699.50 × 2,101,699.50
4. Step 4: Simplify right side
   1,427,421x = 4,417,140,788,300.25
5. Step 5: Solve for x
   x = 4,417,140,788,300.25/1,427,421
6. Step 6: Final answer
   x = 3,094,490.55