Finding the Third Proportional to 29,978,216 and 45,293,948

Step by Step Solution

1. Step 1: Write the proportion equation
   29,978,216 : 45,293,948 = 45,293,948 : x
2. Step 2: Convert to fraction form
   29,978,216/45,293,948 = 45,293,948/x
3. Step 3: Cross multiply
   29,978,216x = 45,293,948 × 45,293,948
4. Step 4: Simplify right side
   29,978,216x = 2,051,541,725,426,704
5. Step 5: Solve for x
   x = 2,051,541,725,426,704/29,978,216
6. Step 6: Final answer
   x = 68,434,416.69