Finding the Third Proportional to 91,090,483.88 and 196,695,833.63

Step by Step Solution

1. Step 1: Write the proportion equation
   91,090,483.88 : 196,695,833.63 = 196,695,833.63 : x
2. Step 2: Convert to fraction form
   91,090,483.88/196,695,833.63 = 196,695,833.63/x
3. Step 3: Cross multiply
   91,090,483.88x = 196,695,833.63 × 196,695,833.63
4. Step 4: Simplify right side
   91,090,483.88x = 38,689,250,965,433,680
5. Step 5: Solve for x
   x = 38,689,250,965,433,680/91,090,483.88
6. Step 6: Final answer
   x = 424,734,278.70