Finding the Third Proportional to 42,902,168 and 91,417,070

Step by Step Solution

1. Step 1: Write the proportion equation
   42,902,168 : 91,417,070 = 91,417,070 : x
2. Step 2: Convert to fraction form
   42,902,168/91,417,070 = 91,417,070/x
3. Step 3: Cross multiply
   42,902,168x = 91,417,070 × 91,417,070
4. Step 4: Simplify right side
   42,902,168x = 8,357,080,687,384,900
5. Step 5: Solve for x
   x = 8,357,080,687,384,900/42,902,168
6. Step 6: Final answer
   x = 194,793,901.50