Finding the Third Proportional to 2,978,712 and 4,602,861

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,712 : 4,602,861 = 4,602,861 : x
2. Step 2: Convert to fraction form
   2,978,712/4,602,861 = 4,602,861/x
3. Step 3: Cross multiply
   2,978,712x = 4,602,861 × 4,602,861
4. Step 4: Simplify right side
   2,978,712x = 21,186,329,385,321
5. Step 5: Solve for x
   x = 21,186,329,385,321/2,978,712
6. Step 6: Final answer
   x = 7,112,580.67