Finding the Third Proportional to 28,312,584 and 42,700,860

Step by Step Solution

1. Step 1: Write the proportion equation
   28,312,584 : 42,700,860 = 42,700,860 : x
2. Step 2: Convert to fraction form
   28,312,584/42,700,860 = 42,700,860/x
3. Step 3: Cross multiply
   28,312,584x = 42,700,860 × 42,700,860
4. Step 4: Simplify right side
   28,312,584x = 1,823,363,444,739,600
5. Step 5: Solve for x
   x = 1,823,363,444,739,600/28,312,584
6. Step 6: Final answer
   x = 64,401,166.80